139960970

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1\times {\mathrm{1279}}^1$

素因数の和:1670

約数の個数: 32

約数和(自身を含む): 260997120

約数和(自身を除く): 121036150

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 353, 706, 1279, 1765, 2558, 3530, 6395, 10943, 12790, 21886, 39649, 54715, 79298, 109430, 198245, 396490, 451487, 902974, 2257435, 4514870, 13996097, 27992194, 69980485, 139960970]

約数ペア:

[(1, 139960970), (2, 69980485), (5, 27992194), (10, 13996097), (31, 4514870), (62, 2257435), (155, 902974), (310, 451487), (353, 396490), (706, 198245), (1279, 109430), (1765, 79298), (2558, 54715), (3530, 39649), (6395, 21886), (10943, 12790)]