318399640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{612307}}^1$

素因数の和:612331

約数の個数: 32

約数和(自身を含む): 771508080

約数和(自身を除く): 453108440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 612307, 1224614, 2449228, 3061535, 4898456, 6123070, 7959991, 12246140, 15919982, 24492280, 31839964, 39799955, 63679928, 79599910, 159199820, 318399640]

約数ペア:

[(1, 318399640), (2, 159199820), (4, 79599910), (5, 63679928), (8, 39799955), (10, 31839964), (13, 24492280), (20, 15919982), (26, 12246140), (40, 7959991), (52, 6123070), (65, 4898456), (104, 3061535), (130, 2449228), (260, 1224614), (520, 612307)]