90210320

素因数分解:

$2^4\times 5^1\times {\mathrm{1127629}}^1$

素因数の和:1127642

約数の個数: 20

約数和(自身を含む): 209739180

約数和(自身を除く): 119528860

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1127629, 2255258, 4510516, 5638145, 9021032, 11276290, 18042064, 22552580, 45105160, 90210320]

約数ペア:

[(1, 90210320), (2, 45105160), (4, 22552580), (5, 18042064), (8, 11276290), (10, 9021032), (16, 5638145), (20, 4510516), (40, 2255258), (80, 1127629)]