998940890

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1406959}}^1$

素因数の和:1407037

約数の個数: 16

約数和(自身を含む): 1823420160

約数和(自身を除く): 824479270

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 1406959, 2813918, 7034795, 14069590, 99894089, 199788178, 499470445, 998940890]

約数ペア:

[(1, 998940890), (2, 499470445), (5, 199788178), (10, 99894089), (71, 14069590), (142, 7034795), (355, 2813918), (710, 1406959)]