4000405

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{587}}^1$

素因数の和:668

約数の個数: 16

約数和(自身を含む): 5080320

約数和(自身を除く): 1079915

約数列:

[1, 5, 29, 47, 145, 235, 587, 1363, 2935, 6815, 17023, 27589, 85115, 137945, 800081, 4000405]

約数ペア:

[(1, 4000405), (5, 800081), (29, 137945), (47, 85115), (145, 27589), (235, 17023), (587, 6815), (1363, 2935)]