280011560

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{1381}}^1$

素因数の和:1566

約数の個数: 64

約数和(自身を含む): 652248720

約数和(自身を除く): 372237160

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 137, 148, 185, 274, 296, 370, 548, 685, 740, 1096, 1370, 1381, 1480, 2740, 2762, 5069, 5480, 5524, 6905, 10138, 11048, 13810, 20276, 25345, 27620, 40552, 50690, 51097, 55240, 101380, 102194, 189197, 202760, 204388, 255485, 378394, 408776, 510970, 756788, 945985, 1021940, 1513576, 1891970, 2043880, 3783940, 7000289, 7567880, 14000578, 28001156, 35001445, 56002312, 70002890, 140005780, 280011560]

約数ペア:

[(1, 280011560), (2, 140005780), (4, 70002890), (5, 56002312), (8, 35001445), (10, 28001156), (20, 14000578), (37, 7567880), (40, 7000289), (74, 3783940), (137, 2043880), (148, 1891970), (185, 1513576), (274, 1021940), (296, 945985), (370, 756788), (548, 510970), (685, 408776), (740, 378394), (1096, 255485), (1370, 204388), (1381, 202760), (1480, 189197), (2740, 102194), (2762, 101380), (5069, 55240), (5480, 51097), (5524, 50690), (6905, 40552), (10138, 27620), (11048, 25345), (13810, 20276)]