90188720

素因数分解:

$2^4\times 5^1\times {\mathrm{1127359}}^1$

素因数の和:1127372

約数の個数: 20

約数和(自身を含む): 209688960

約数和(自身を除く): 119500240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1127359, 2254718, 4509436, 5636795, 9018872, 11273590, 18037744, 22547180, 45094360, 90188720]

約数ペア:

[(1, 90188720), (2, 45094360), (4, 22547180), (5, 18037744), (8, 11273590), (10, 9018872), (16, 5636795), (20, 4509436), (40, 2254718), (80, 1127359)]