1406403820

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{890129}}^1$

素因数の和:890217

約数の個数: 24

約数和(自身を含む): 2990836800

約数和(自身を除く): 1584432980

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 890129, 1780258, 3560516, 4450645, 8901290, 17802580, 70320191, 140640382, 281280764, 351600955, 703201910, 1406403820]

約数ペア:

[(1, 1406403820), (2, 703201910), (4, 351600955), (5, 281280764), (10, 140640382), (20, 70320191), (79, 17802580), (158, 8901290), (316, 4450645), (395, 3560516), (790, 1780258), (1580, 890129)]