15707781820

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1511}}^1\times {\mathrm{8521}}^1$

素因数の和:10102

約数の個数: 48

約数和(自身を含む): 33553227456

約数和(自身を除く): 17845445636

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 1511, 3022, 6044, 7555, 8521, 15110, 17042, 30220, 34084, 42605, 85210, 92171, 170420, 184342, 368684, 460855, 519781, 921710, 1039562, 1843420, 2079124, 2598905, 5197810, 10395620, 12875231, 25750462, 51500924, 64376155, 128752310, 257504620, 785389091, 1570778182, 3141556364, 3926945455, 7853890910, 15707781820]

約数ペア:

[(1, 15707781820), (2, 7853890910), (4, 3926945455), (5, 3141556364), (10, 1570778182), (20, 785389091), (61, 257504620), (122, 128752310), (244, 64376155), (305, 51500924), (610, 25750462), (1220, 12875231), (1511, 10395620), (3022, 5197810), (6044, 2598905), (7555, 2079124), (8521, 1843420), (15110, 1039562), (17042, 921710), (30220, 519781), (34084, 460855), (42605, 368684), (85210, 184342), (92171, 170420)]