740020

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{227}}^1$

素因数の和:399

約数の個数: 24

約数和(自身を含む): 1570464

約数和(自身を除く): 830444

約数列:

[1, 2, 4, 5, 10, 20, 163, 227, 326, 454, 652, 815, 908, 1135, 1630, 2270, 3260, 4540, 37001, 74002, 148004, 185005, 370010, 740020]

約数ペア:

[(1, 740020), (2, 370010), (4, 185005), (5, 148004), (10, 74002), (20, 37001), (163, 4540), (227, 3260), (326, 2270), (454, 1630), (652, 1135), (815, 908)]