205437620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{3217}}^1$

素因数の和:3360

約数の個数: 48

約数和(自身を含む): 449799168

約数和(自身を除く): 244361548

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 103, 124, 155, 206, 310, 412, 515, 620, 1030, 2060, 3193, 3217, 6386, 6434, 12772, 12868, 15965, 16085, 31930, 32170, 63860, 64340, 99727, 199454, 331351, 398908, 498635, 662702, 997270, 1325404, 1656755, 1994540, 3313510, 6627020, 10271881, 20543762, 41087524, 51359405, 102718810, 205437620]

約数ペア:

[(1, 205437620), (2, 102718810), (4, 51359405), (5, 41087524), (10, 20543762), (20, 10271881), (31, 6627020), (62, 3313510), (103, 1994540), (124, 1656755), (155, 1325404), (206, 997270), (310, 662702), (412, 498635), (515, 398908), (620, 331351), (1030, 199454), (2060, 99727), (3193, 64340), (3217, 63860), (6386, 32170), (6434, 31930), (12772, 16085), (12868, 15965)]