16781225220

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{691}}^1$

素因数の和:997

約数の個数: 288

約数和(自身を含む): 55858682880

約数和(自身を除く): 39077457660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 81, 90, 95, 108, 114, 135, 162, 171, 180, 190, 228, 243, 263, 270, 285, 324, 342, 380, 405, 486, 513, 526, 540, 570, 684, 691, 789, 810, 855, 972, 1026, 1052, 1140, 1215, 1315, 1382, 1539, 1578, 1620, 1710, 2052, 2073, 2367, 2430, 2565, 2630, 2764, 3078, 3156, 3420, 3455, 3945, 4146, 4617, 4734, 4860, 4997, 5130, 5260, 6156, 6219, 6910, 7101, 7695, 7890, 8292, 9234, 9468, 9994, 10260, 10365, 11835, 12438, 13129, 13820, 14202, 14991, 15390, 15780, 18468, 18657, 19988, 20730, 21303, 23085, 23670, 24876, 24985, 26258, 28404, 29982, 30780, 31095, 35505, 37314, 39387, 41460, 42606, 44973, 46170, 47340, 49970, 52516, 55971, 59964, 62190, 63909, 65645, 71010, 74628, 74955, 78774, 85212, 89946, 92340, 93285, 99940, 106515, 111942, 118161, 124380, 127818, 131290, 134919, 142020, 149910, 157548, 167913, 179892, 181733, 186570, 196935, 213030, 223884, 224865, 236322, 255636, 262580, 269838, 279855, 299820, 319545, 335826, 354483, 363466, 373140, 393870, 404757, 426060, 449730, 472644, 539676, 545199, 559710, 590805, 639090, 671652, 674595, 708966, 726932, 787740, 809514, 839565, 899460, 908665, 1063449, 1090398, 1119420, 1181610, 1214271, 1278180, 1349190, 1417932, 1619028, 1635597, 1679130, 1772415, 1817330, 2023785, 2126898, 2180796, 2363220, 2428542, 2698380, 2725995, 3190347, 3271194, 3358260, 3452927, 3544830, 3634660, 4047570, 4253796, 4857084, 4906791, 5317245, 5451990, 6071355, 6380694, 6542388, 6905854, 7089660, 8095140, 8177985, 9813582, 10358781, 10634490, 10903980, 12142710, 12761388, 13811708, 14720373, 15951735, 16355970, 17264635, 19627164, 20717562, 21268980, 24285420, 24533955, 29440746, 31076343, 31903470, 32711940, 34529270, 41435124, 44161119, 49067910, 51793905, 58881492, 62152686, 63806940, 69058540, 73601865, 88322238, 93229029, 98135820, 103587810, 124305372, 147203730, 155381715, 176644476, 186458058, 207175620, 220805595, 279687087, 294407460, 310763430, 372916116, 441611190, 466145145, 559374174, 621526860, 839061261, 883222380, 932290290, 1118748348, 1398435435, 1678122522, 1864580580, 2796870870, 3356245044, 4195306305, 5593741740, 8390612610, 16781225220]

約数ペア:

[(1, 16781225220), (2, 8390612610), (3, 5593741740), (4, 4195306305), (5, 3356245044), (6, 2796870870), (9, 1864580580), (10, 1678122522), (12, 1398435435), (15, 1118748348), (18, 932290290), (19, 883222380), (20, 839061261), (27, 621526860), (30, 559374174), (36, 466145145), (38, 441611190), (45, 372916116), (54, 310763430), (57, 294407460), (60, 279687087), (76, 220805595), (81, 207175620), (90, 186458058), (95, 176644476), (108, 155381715), (114, 147203730), (135, 124305372), (162, 103587810), (171, 98135820), (180, 93229029), (190, 88322238), (228, 73601865), (243, 69058540), (263, 63806940), (270, 62152686), (285, 58881492), (324, 51793905), (342, 49067910), (380, 44161119), (405, 41435124), (486, 34529270), (513, 32711940), (526, 31903470), (540, 31076343), (570, 29440746), (684, 24533955), (691, 24285420), (789, 21268980), (810, 20717562), (855, 19627164), (972, 17264635), (1026, 16355970), (1052, 15951735), (1140, 14720373), (1215, 13811708), (1315, 12761388), (1382, 12142710), (1539, 10903980), (1578, 10634490), (1620, 10358781), (1710, 9813582), (2052, 8177985), (2073, 8095140), (2367, 7089660), (2430, 6905854), (2565, 6542388), (2630, 6380694), (2764, 6071355), (3078, 5451990), (3156, 5317245), (3420, 4906791), (3455, 4857084), (3945, 4253796), (4146, 4047570), (4617, 3634660), (4734, 3544830), (4860, 3452927), (4997, 3358260), (5130, 3271194), (5260, 3190347), (6156, 2725995), (6219, 2698380), (6910, 2428542), (7101, 2363220), (7695, 2180796), (7890, 2126898), (8292, 2023785), (9234, 1817330), (9468, 1772415), (9994, 1679130), (10260, 1635597), (10365, 1619028), (11835, 1417932), (12438, 1349190), (13129, 1278180), (13820, 1214271), (14202, 1181610), (14991, 1119420), (15390, 1090398), (15780, 1063449), (18468, 908665), (18657, 899460), (19988, 839565), (20730, 809514), (21303, 787740), (23085, 726932), (23670, 708966), (24876, 674595), (24985, 671652), (26258, 639090), (28404, 590805), (29982, 559710), (30780, 545199), (31095, 539676), (35505, 472644), (37314, 449730), (39387, 426060), (41460, 404757), (42606, 393870), (44973, 373140), (46170, 363466), (47340, 354483), (49970, 335826), (52516, 319545), (55971, 299820), (59964, 279855), (62190, 269838), (63909, 262580), (65645, 255636), (71010, 236322), (74628, 224865), (74955, 223884), (78774, 213030), (85212, 196935), (89946, 186570), (92340, 181733), (93285, 179892), (99940, 167913), (106515, 157548), (111942, 149910), (118161, 142020), (124380, 134919), (127818, 131290)]