664991710

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1621931}}^1$

素因数の和:1621979

約数の個数: 16

約数和(自身を含む): 1226180592

約数和(自身を除く): 561188882

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 1621931, 3243862, 8109655, 16219310, 66499171, 132998342, 332495855, 664991710]

約数ペア:

[(1, 664991710), (2, 332495855), (5, 132998342), (10, 66499171), (41, 16219310), (82, 8109655), (205, 3243862), (410, 1621931)]