641000104

素因数分解:

$2^3\times {\mathrm{401}}^1\times {\mathrm{199813}}^1$

素因数の和:200220

約数の個数: 16

約数和(自身を含む): 1204878420

約数和(自身を除く): 563878316

約数列:

[1, 2, 4, 8, 401, 802, 1604, 3208, 199813, 399626, 799252, 1598504, 80125013, 160250026, 320500052, 641000104]

約数ペア:

[(1, 641000104), (2, 320500052), (4, 160250026), (8, 80125013), (401, 1598504), (802, 799252), (1604, 399626), (3208, 199813)]