3989210320

素因数分解:

$2^4\times 5^1\times {\mathrm{49865129}}^1$

素因数の和:49865142

約数の個数: 20

約数和(自身を含む): 9274914180

約数和(自身を除く): 5285703860

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 49865129, 99730258, 199460516, 249325645, 398921032, 498651290, 797842064, 997302580, 1994605160, 3989210320]

約数ペア:

[(1, 3989210320), (2, 1994605160), (4, 997302580), (5, 797842064), (8, 498651290), (10, 398921032), (16, 249325645), (20, 199460516), (40, 99730258), (80, 49865129)]