64590380

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{19813}}^1$

素因数の和:19985

約数の個数: 24

約数和(自身を含む): 136478832

約数和(自身を除く): 71888452

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 19813, 39626, 79252, 99065, 198130, 396260, 3229519, 6459038, 12918076, 16147595, 32295190, 64590380]

約数ペア:

[(1, 64590380), (2, 32295190), (4, 16147595), (5, 12918076), (10, 6459038), (20, 3229519), (163, 396260), (326, 198130), (652, 99065), (815, 79252), (1630, 39626), (3260, 19813)]