20778867780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{8861}}^1$

素因数の和:8931

約数の個数: 288

約数和(自身を含む): 71284510080

約数和(自身を除く): 50505642300

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 17, 19, 20, 22, 30, 33, 34, 38, 44, 51, 55, 57, 60, 66, 68, 76, 85, 95, 102, 110, 114, 121, 132, 165, 170, 187, 190, 204, 209, 220, 228, 242, 255, 285, 323, 330, 340, 363, 374, 380, 418, 484, 510, 561, 570, 605, 627, 646, 660, 726, 748, 836, 935, 969, 1020, 1045, 1122, 1140, 1210, 1254, 1292, 1452, 1615, 1815, 1870, 1938, 2057, 2090, 2244, 2299, 2420, 2508, 2805, 3135, 3230, 3553, 3630, 3740, 3876, 4114, 4180, 4598, 4845, 5610, 6171, 6270, 6460, 6897, 7106, 7260, 8228, 8861, 9196, 9690, 10285, 10659, 11220, 11495, 12342, 12540, 13794, 14212, 17722, 17765, 19380, 20570, 21318, 22990, 24684, 26583, 27588, 30855, 34485, 35444, 35530, 39083, 41140, 42636, 44305, 45980, 53166, 53295, 61710, 68970, 71060, 78166, 88610, 97471, 106332, 106590, 117249, 123420, 132915, 137940, 150637, 156332, 168359, 177220, 194942, 195415, 213180, 234498, 265830, 292413, 301274, 336718, 389884, 390830, 451911, 468996, 487355, 505077, 531660, 584826, 586245, 602548, 673436, 753185, 781660, 841795, 903822, 974710, 1010154, 1072181, 1169652, 1172490, 1462065, 1506370, 1657007, 1683590, 1807644, 1851949, 1949420, 2020308, 2144362, 2259555, 2344980, 2525385, 2862103, 2924130, 3012740, 3216543, 3314014, 3367180, 3703898, 4288724, 4519110, 4971021, 5050770, 5360905, 5555847, 5724206, 5848260, 6433086, 6628028, 7407796, 8285035, 8586309, 9038220, 9259745, 9942042, 10101540, 10721810, 11111694, 11448412, 12866172, 14310515, 16082715, 16570070, 17172618, 18227077, 18519490, 19884084, 20371439, 21443620, 22223388, 24855105, 27779235, 28621030, 31483133, 32165430, 33140140, 34345236, 36454154, 37038980, 40742878, 42931545, 49710210, 54681231, 55558470, 57242060, 61114317, 62966266, 64330860, 72908308, 81485756, 85863090, 91135385, 94449399, 99420420, 101857195, 109362462, 111116940, 122228634, 125932532, 157415665, 171726180, 182270770, 188898798, 203714390, 218724924, 244457268, 273406155, 305571585, 314831330, 346314463, 364541540, 377797596, 407428780, 472246995, 546812310, 611143170, 629662660, 692628926, 944493990, 1038943389, 1093624620, 1222286340, 1385257852, 1731572315, 1888987980, 2077886778, 3463144630, 4155773556, 5194716945, 6926289260, 10389433890, 20778867780]

約数ペア:

[(1, 20778867780), (2, 10389433890), (3, 6926289260), (4, 5194716945), (5, 4155773556), (6, 3463144630), (10, 2077886778), (11, 1888987980), (12, 1731572315), (15, 1385257852), (17, 1222286340), (19, 1093624620), (20, 1038943389), (22, 944493990), (30, 692628926), (33, 629662660), (34, 611143170), (38, 546812310), (44, 472246995), (51, 407428780), (55, 377797596), (57, 364541540), (60, 346314463), (66, 314831330), (68, 305571585), (76, 273406155), (85, 244457268), (95, 218724924), (102, 203714390), (110, 188898798), (114, 182270770), (121, 171726180), (132, 157415665), (165, 125932532), (170, 122228634), (187, 111116940), (190, 109362462), (204, 101857195), (209, 99420420), (220, 94449399), (228, 91135385), (242, 85863090), (255, 81485756), (285, 72908308), (323, 64330860), (330, 62966266), (340, 61114317), (363, 57242060), (374, 55558470), (380, 54681231), (418, 49710210), (484, 42931545), (510, 40742878), (561, 37038980), (570, 36454154), (605, 34345236), (627, 33140140), (646, 32165430), (660, 31483133), (726, 28621030), (748, 27779235), (836, 24855105), (935, 22223388), (969, 21443620), (1020, 20371439), (1045, 19884084), (1122, 18519490), (1140, 18227077), (1210, 17172618), (1254, 16570070), (1292, 16082715), (1452, 14310515), (1615, 12866172), (1815, 11448412), (1870, 11111694), (1938, 10721810), (2057, 10101540), (2090, 9942042), (2244, 9259745), (2299, 9038220), (2420, 8586309), (2508, 8285035), (2805, 7407796), (3135, 6628028), (3230, 6433086), (3553, 5848260), (3630, 5724206), (3740, 5555847), (3876, 5360905), (4114, 5050770), (4180, 4971021), (4598, 4519110), (4845, 4288724), (5610, 3703898), (6171, 3367180), (6270, 3314014), (6460, 3216543), (6897, 3012740), (7106, 2924130), (7260, 2862103), (8228, 2525385), (8861, 2344980), (9196, 2259555), (9690, 2144362), (10285, 2020308), (10659, 1949420), (11220, 1851949), (11495, 1807644), (12342, 1683590), (12540, 1657007), (13794, 1506370), (14212, 1462065), (17722, 1172490), (17765, 1169652), (19380, 1072181), (20570, 1010154), (21318, 974710), (22990, 903822), (24684, 841795), (26583, 781660), (27588, 753185), (30855, 673436), (34485, 602548), (35444, 586245), (35530, 584826), (39083, 531660), (41140, 505077), (42636, 487355), (44305, 468996), (45980, 451911), (53166, 390830), (53295, 389884), (61710, 336718), (68970, 301274), (71060, 292413), (78166, 265830), (88610, 234498), (97471, 213180), (106332, 195415), (106590, 194942), (117249, 177220), (123420, 168359), (132915, 156332), (137940, 150637)]