18173620

素因数分解:

$2^2\times 5^1\times {\mathrm{227}}^1\times {\mathrm{4003}}^1$

素因数の和:4239

約数の個数: 24

約数和(自身を含む): 38342304

約数和(自身を除く): 20168684

約数列:

[1, 2, 4, 5, 10, 20, 227, 454, 908, 1135, 2270, 4003, 4540, 8006, 16012, 20015, 40030, 80060, 908681, 1817362, 3634724, 4543405, 9086810, 18173620]

約数ペア:

[(1, 18173620), (2, 9086810), (4, 4543405), (5, 3634724), (10, 1817362), (20, 908681), (227, 80060), (454, 40030), (908, 20015), (1135, 16012), (2270, 8006), (4003, 4540)]