90280280

素因数分解:

$2^3\times 5^1\times {\mathrm{2257007}}^1$

素因数の和:2257018

約数の個数: 16

約数和(自身を含む): 203130720

約数和(自身を除く): 112850440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2257007, 4514014, 9028028, 11285035, 18056056, 22570070, 45140140, 90280280]

約数ペア:

[(1, 90280280), (2, 45140140), (4, 22570070), (5, 18056056), (8, 11285035), (10, 9028028), (20, 4514014), (40, 2257007)]