645684

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{4139}}^1$

素因数の和:4159

約数の個数: 24

約数和(自身を含む): 1622880

約数和(自身を除く): 977196

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 4139, 8278, 12417, 16556, 24834, 49668, 53807, 107614, 161421, 215228, 322842, 645684]

約数ペア:

[(1, 645684), (2, 322842), (3, 215228), (4, 161421), (6, 107614), (12, 53807), (13, 49668), (26, 24834), (39, 16556), (52, 12417), (78, 8278), (156, 4139)]