409060

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{181}}^1$

素因数の和:303

約数の個数: 24

約数和(自身を含む): 871416

約数和(自身を除く): 462356

約数列:

[1, 2, 4, 5, 10, 20, 113, 181, 226, 362, 452, 565, 724, 905, 1130, 1810, 2260, 3620, 20453, 40906, 81812, 102265, 204530, 409060]

約数ペア:

[(1, 409060), (2, 204530), (4, 102265), (5, 81812), (10, 40906), (20, 20453), (113, 3620), (181, 2260), (226, 1810), (362, 1130), (452, 905), (565, 724)]