20001142

素因数分解:

$2^1\times 7^1\times {\mathrm{719}}^1\times {\mathrm{1987}}^1$

素因数の和:2715

約数の個数: 16

約数和(自身を含む): 34352640

約数和(自身を除く): 14351498

約数列:

[1, 2, 7, 14, 719, 1438, 1987, 3974, 5033, 10066, 13909, 27818, 1428653, 2857306, 10000571, 20001142]

約数ペア:

[(1, 20001142), (2, 10000571), (7, 2857306), (14, 1428653), (719, 27818), (1438, 13909), (1987, 10066), (3974, 5033)]