20012208.000000000

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{389}}^1$

素因数の和:485

約数の個数: 288

約数和(自身を含む): 1478655360

約数和(自身を除く): 1089974340

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 52, 60, 61, 63, 65, 70, 78, 84, 90, 91, 105, 117, 122, 126, 130, 140, 156, 180, 182, 183, 195, 210, 234, 244, 252, 260, 273, 305, 315, 364, 366, 389, 390, 420, 427, 455, 468, 546, 549, 585, 610, 630, 732, 778, 780, 793, 819, 854, 910, 915, 1092, 1098, 1167, 1170, 1220, 1260, 1281, 1365, 1556, 1586, 1638, 1708, 1820, 1830, 1945, 2135, 2196, 2334, 2340, 2379, 2562, 2723, 2730, 2745, 3172, 3276, 3501, 3660, 3843, 3890, 3965, 4095, 4270, 4668, 4758, 5057, 5124, 5446, 5460, 5490, 5551, 5835, 6405, 7002, 7137, 7686, 7780, 7930, 8169, 8190, 8540, 9516, 10114, 10892, 10980, 11102, 11670, 11895, 12810, 13615, 14004, 14274, 15171, 15372, 15860, 16338, 16380, 16653, 17505, 19215, 20228, 22204, 23340, 23729, 23790, 24507, 25285, 25620, 27230, 27755, 28548, 30342, 32676, 33306, 35010, 35399, 35685, 38430, 40845, 45513, 47458, 47580, 49014, 49959, 50570, 54460, 55510, 60684, 66612, 70020, 70798, 71187, 71370, 75855, 76860, 81690, 83265, 91026, 94916, 98028, 99918, 101140, 106197, 111020, 118645, 122535, 141596, 142374, 142740, 151710, 163380, 166103, 166530, 176995, 182052, 199836, 212394, 213561, 227565, 237290, 245070, 249795, 284748, 303420, 308477, 318591, 332206, 333060, 353990, 355935, 424788, 427122, 455130, 474580, 490140, 498309, 499590, 530985, 616954, 637182, 664412, 707980, 711870, 830515, 854244, 910260, 925431, 996618, 999180, 1061970, 1067805, 1233908, 1274364, 1423740, 1494927, 1542385, 1592955, 1661030, 1850862, 1993236, 2123940, 2135610, 2159339, 2491545, 2776293, 2989854, 3084770, 3185910, 3322060, 3701724, 4271220, 4318678, 4627155, 4983090, 5552586, 5979708, 6169540, 6371820, 6478017, 7474635, 8637356, 9254310, 9966180, 10796695, 11105172, 12956034, 13881465, 14949270, 18508620, 19434051, 21593390, 25912068, 27762930, 29898540, 32390085, 38868102, 43186780, 55525860, 64780170, 77736204, 97170255, 129560340, 194340510, 388681020]

約数ペア:

[(1, 388681020), (2, 194340510), (3, 129560340), (4, 97170255), (5, 77736204), (6, 64780170), (7, 55525860), (9, 43186780), (10, 38868102), (12, 32390085), (13, 29898540), (14, 27762930), (15, 25912068), (18, 21593390), (20, 19434051), (21, 18508620), (26, 14949270), (28, 13881465), (30, 12956034), (35, 11105172), (36, 10796695), (39, 9966180), (42, 9254310), (45, 8637356), (52, 7474635), (60, 6478017), (61, 6371820), (63, 6169540), (65, 5979708), (70, 5552586), (78, 4983090), (84, 4627155), (90, 4318678), (91, 4271220), (105, 3701724), (117, 3322060), (122, 3185910), (126, 3084770), (130, 2989854), (140, 2776293), (156, 2491545), (180, 2159339), (182, 2135610), (183, 2123940), (195, 1993236), (210, 1850862), (234, 1661030), (244, 1592955), (252, 1542385), (260, 1494927), (273, 1423740), (305, 1274364), (315, 1233908), (364, 1067805), (366, 1061970), (389, 999180), (390, 996618), (420, 925431), (427, 910260), (455, 854244), (468, 830515), (546, 711870), (549, 707980), (585, 664412), (610, 637182), (630, 616954), (732, 530985), (778, 499590), (780, 498309), (793, 490140), (819, 474580), (854, 455130), (910, 427122), (915, 424788), (1092, 355935), (1098, 353990), (1167, 333060), (1170, 332206), (1220, 318591), (1260, 308477), (1281, 303420), (1365, 284748), (1556, 249795), (1586, 245070), (1638, 237290), (1708, 227565), (1820, 213561), (1830, 212394), (1945, 199836), (2135, 182052), (2196, 176995), (2334, 166530), (2340, 166103), (2379, 163380), (2562, 151710), (2723, 142740), (2730, 142374), (2745, 141596), (3172, 122535), (3276, 118645), (3501, 111020), (3660, 106197), (3843, 101140), (3890, 99918), (3965, 98028), (4095, 94916), (4270, 91026), (4668, 83265), (4758, 81690), (5057, 76860), (5124, 75855), (5446, 71370), (5460, 71187), (5490, 70798), (5551, 70020), (5835, 66612), (6405, 60684), (7002, 55510), (7137, 54460), (7686, 50570), (7780, 49959), (7930, 49014), (8169, 47580), (8190, 47458), (8540, 45513), (9516, 40845), (10114, 38430), (10892, 35685), (10980, 35399), (11102, 35010), (11670, 33306), (11895, 32676), (12810, 30342), (13615, 28548), (14004, 27755), (14274, 27230), (15171, 25620), (15372, 25285), (15860, 24507), (16338, 23790), (16380, 23729), (16653, 23340), (17505, 22204), (19215, 20228)]