65490820

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{53681}}^1$

素因数の和:53751

約数の個数: 24

約数和(自身を含む): 139787928

約数和(自身を除く): 74297108

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 53681, 107362, 214724, 268405, 536810, 1073620, 3274541, 6549082, 13098164, 16372705, 32745410, 65490820]

約数ペア:

[(1, 65490820), (2, 32745410), (4, 16372705), (5, 13098164), (10, 6549082), (20, 3274541), (61, 1073620), (122, 536810), (244, 268405), (305, 214724), (610, 107362), (1220, 53681)]