28712080

素因数分解:

$2^4\times 5^1\times {\mathrm{358901}}^1$

素因数の和:358914

約数の個数: 20

約数和(自身を含む): 66755772

約数和(自身を除く): 38043692

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 358901, 717802, 1435604, 1794505, 2871208, 3589010, 5742416, 7178020, 14356040, 28712080]

約数ペア:

[(1, 28712080), (2, 14356040), (4, 7178020), (5, 5742416), (8, 3589010), (10, 2871208), (16, 1794505), (20, 1435604), (40, 717802), (80, 358901)]