1291289480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{40709}}^1$

素因数の和:40794

約数の個数: 64

約数和(自身を含む): 3180265200

約数和(自身を除く): 1888975720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 61, 65, 104, 122, 130, 244, 260, 305, 488, 520, 610, 793, 1220, 1586, 2440, 3172, 3965, 6344, 7930, 15860, 31720, 40709, 81418, 162836, 203545, 325672, 407090, 529217, 814180, 1058434, 1628360, 2116868, 2483249, 2646085, 4233736, 4966498, 5292170, 9932996, 10584340, 12416245, 19865992, 21168680, 24832490, 32282237, 49664980, 64564474, 99329960, 129128948, 161411185, 258257896, 322822370, 645644740, 1291289480]

約数ペア:

[(1, 1291289480), (2, 645644740), (4, 322822370), (5, 258257896), (8, 161411185), (10, 129128948), (13, 99329960), (20, 64564474), (26, 49664980), (40, 32282237), (52, 24832490), (61, 21168680), (65, 19865992), (104, 12416245), (122, 10584340), (130, 9932996), (244, 5292170), (260, 4966498), (305, 4233736), (488, 2646085), (520, 2483249), (610, 2116868), (793, 1628360), (1220, 1058434), (1586, 814180), (2440, 529217), (3172, 407090), (3965, 325672), (6344, 203545), (7930, 162836), (15860, 81418), (31720, 40709)]