18985584280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{461}}^1\times {\mathrm{2731}}^1$

素因数の和:3245

約数の個数: 128

約数和(自身を含む): 47710555200

約数和(自身を除く): 28724970920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 52, 58, 65, 104, 116, 130, 145, 232, 260, 290, 377, 461, 520, 580, 754, 922, 1160, 1508, 1844, 1885, 2305, 2731, 3016, 3688, 3770, 4610, 5462, 5993, 7540, 9220, 10924, 11986, 13369, 13655, 15080, 18440, 21848, 23972, 26738, 27310, 29965, 35503, 47944, 53476, 54620, 59930, 66845, 71006, 79199, 106952, 109240, 119860, 133690, 142012, 158398, 173797, 177515, 239720, 267380, 284024, 316796, 347594, 355030, 395995, 534760, 633592, 695188, 710060, 791990, 868985, 1029587, 1258991, 1390376, 1420120, 1583980, 1737970, 2059174, 2517982, 3167960, 3475940, 4118348, 5035964, 5147935, 6294955, 6951880, 8236696, 10071928, 10295870, 12589910, 16366883, 20591740, 25179820, 32733766, 36510739, 41183480, 50359640, 65467532, 73021478, 81834415, 130935064, 146042956, 163668830, 182553695, 292085912, 327337660, 365107390, 474639607, 654675320, 730214780, 949279214, 1460429560, 1898558428, 2373198035, 3797116856, 4746396070, 9492792140, 18985584280]

約数ペア:

[(1, 18985584280), (2, 9492792140), (4, 4746396070), (5, 3797116856), (8, 2373198035), (10, 1898558428), (13, 1460429560), (20, 949279214), (26, 730214780), (29, 654675320), (40, 474639607), (52, 365107390), (58, 327337660), (65, 292085912), (104, 182553695), (116, 163668830), (130, 146042956), (145, 130935064), (232, 81834415), (260, 73021478), (290, 65467532), (377, 50359640), (461, 41183480), (520, 36510739), (580, 32733766), (754, 25179820), (922, 20591740), (1160, 16366883), (1508, 12589910), (1844, 10295870), (1885, 10071928), (2305, 8236696), (2731, 6951880), (3016, 6294955), (3688, 5147935), (3770, 5035964), (4610, 4118348), (5462, 3475940), (5993, 3167960), (7540, 2517982), (9220, 2059174), (10924, 1737970), (11986, 1583980), (13369, 1420120), (13655, 1390376), (15080, 1258991), (18440, 1029587), (21848, 868985), (23972, 791990), (26738, 710060), (27310, 695188), (29965, 633592), (35503, 534760), (47944, 395995), (53476, 355030), (54620, 347594), (59930, 316796), (66845, 284024), (71006, 267380), (79199, 239720), (106952, 177515), (109240, 173797), (119860, 158398), (133690, 142012)]