643292

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:245

約数の個数: 24

約数和(自身を含む): 1234800

約数和(自身を除く): 591508

約数列:

[1, 2, 4, 13, 26, 52, 89, 139, 178, 278, 356, 556, 1157, 1807, 2314, 3614, 4628, 7228, 12371, 24742, 49484, 160823, 321646, 643292]

約数ペア:

[(1, 643292), (2, 321646), (4, 160823), (13, 49484), (26, 24742), (52, 12371), (89, 7228), (139, 4628), (178, 3614), (278, 2314), (356, 1807), (556, 1157)]