90391640

素因数分解:

$2^3\times 5^1\times {\mathrm{2259791}}^1$

素因数の和:2259802

約数の個数: 16

約数和(自身を含む): 203381280

約数和(自身を除く): 112989640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2259791, 4519582, 9039164, 11298955, 18078328, 22597910, 45195820, 90391640]

約数ペア:

[(1, 90391640), (2, 45195820), (4, 22597910), (5, 18078328), (8, 11298955), (10, 9039164), (20, 4519582), (40, 2259791)]