689866684

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{427957}}^1$

素因数の和:428005

約数の個数: 24

約数和(自身を含む): 1342076288

約数和(自身を除く): 652209604

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 427957, 855914, 1711828, 5563441, 11126882, 13266667, 22253764, 26533334, 53066668, 172466671, 344933342, 689866684]

約数ペア:

[(1, 689866684), (2, 344933342), (4, 172466671), (13, 53066668), (26, 26533334), (31, 22253764), (52, 13266667), (62, 11126882), (124, 5563441), (403, 1711828), (806, 855914), (1612, 427957)]