397788188

素因数分解:

$2^2\times 7^1\times {\mathrm{719}}^1\times {\mathrm{19759}}^1$

素因数の和:20489

約数の個数: 24

約数和(自身を含む): 796723200

約数和(自身を除く): 398935012

約数列:

[1, 2, 4, 7, 14, 28, 719, 1438, 2876, 5033, 10066, 19759, 20132, 39518, 79036, 138313, 276626, 553252, 14206721, 28413442, 56826884, 99447047, 198894094, 397788188]

約数ペア:

[(1, 397788188), (2, 198894094), (4, 99447047), (7, 56826884), (14, 28413442), (28, 14206721), (719, 553252), (1438, 276626), (2876, 138313), (5033, 79036), (10066, 39518), (19759, 20132)]