399538690

素因数分解:

$2^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{349}}^1\times {\mathrm{479}}^1$

素因数の和:1074

約数の個数: 32

約数和(自身を含む): 725760000

約数和(自身を除く): 326221310

約数列:

[1, 2, 5, 10, 239, 349, 478, 479, 698, 958, 1195, 1745, 2390, 2395, 3490, 4790, 83411, 114481, 166822, 167171, 228962, 334342, 417055, 572405, 834110, 835855, 1144810, 1671710, 39953869, 79907738, 199769345, 399538690]

約数ペア:

[(1, 399538690), (2, 199769345), (5, 79907738), (10, 39953869), (239, 1671710), (349, 1144810), (478, 835855), (479, 834110), (698, 572405), (958, 417055), (1195, 334342), (1745, 228962), (2390, 167171), (2395, 166822), (3490, 114481), (4790, 83411)]