640479254

素因数分解:

$2^1\times {\mathrm{113}}^1\times {\mathrm{233}}^1\times {\mathrm{12163}}^1$

素因数の和:12511

約数の個数: 16

約数和(自身を含む): 973460592

約数和(自身を除く): 332981338

約数列:

[1, 2, 113, 226, 233, 466, 12163, 24326, 26329, 52658, 1374419, 2748838, 2833979, 5667958, 320239627, 640479254]

約数ペア:

[(1, 640479254), (2, 320239627), (113, 5667958), (226, 2833979), (233, 2748838), (466, 1374419), (12163, 52658), (24326, 26329)]