331370320

素因数分解:

$2^4\times 5^1\times {\mathrm{4142129}}^1$

素因数の和:4142142

約数の個数: 20

約数和(自身を含む): 770436180

約数和(自身を除く): 439065860

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4142129, 8284258, 16568516, 20710645, 33137032, 41421290, 66274064, 82842580, 165685160, 331370320]

約数ペア:

[(1, 331370320), (2, 165685160), (4, 82842580), (5, 66274064), (8, 41421290), (10, 33137032), (16, 20710645), (20, 16568516), (40, 8284258), (80, 4142129)]