90800

素因数分解:

$2^4\times 5^2\times {\mathrm{227}}^1$

素因数の和:245

約数の個数: 30

約数和(自身を含む): 219108

約数和(自身を除く): 128308

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 227, 400, 454, 908, 1135, 1816, 2270, 3632, 4540, 5675, 9080, 11350, 18160, 22700, 45400, 90800]

約数ペア:

[(1, 90800), (2, 45400), (4, 22700), (5, 18160), (8, 11350), (10, 9080), (16, 5675), (20, 4540), (25, 3632), (40, 2270), (50, 1816), (80, 1135), (100, 908), (200, 454), (227, 400)]