1559776720

素因数分解:

$2^4\times 5^1\times {\mathrm{1721}}^1\times {\mathrm{11329}}^1$

素因数の和:13063

約数の個数: 40

約数和(自身を含む): 3628908360

約数和(自身を除く): 2069131640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1721, 3442, 6884, 8605, 11329, 13768, 17210, 22658, 27536, 34420, 45316, 56645, 68840, 90632, 113290, 137680, 181264, 226580, 453160, 906320, 19497209, 38994418, 77988836, 97486045, 155977672, 194972090, 311955344, 389944180, 779888360, 1559776720]

約数ペア:

[(1, 1559776720), (2, 779888360), (4, 389944180), (5, 311955344), (8, 194972090), (10, 155977672), (16, 97486045), (20, 77988836), (40, 38994418), (80, 19497209), (1721, 906320), (3442, 453160), (6884, 226580), (8605, 181264), (11329, 137680), (13768, 113290), (17210, 90632), (22658, 68840), (27536, 56645), (34420, 45316)]