645071674

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{143413}}^1$

素因数の和:143601

約数の個数: 16

約数和(自身を含む): 1048069512

約数和(自身を除く): 402997838

約数列:

[1, 2, 13, 26, 173, 346, 2249, 4498, 143413, 286826, 1864369, 3728738, 24810449, 49620898, 322535837, 645071674]

約数ペア:

[(1, 645071674), (2, 322535837), (13, 49620898), (26, 24810449), (173, 3728738), (346, 1864369), (2249, 286826), (4498, 143413)]