30303820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{211}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 65818368

約数和(自身を除く): 35514548

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 167, 172, 211, 215, 334, 422, 430, 668, 835, 844, 860, 1055, 1670, 2110, 3340, 4220, 7181, 9073, 14362, 18146, 28724, 35237, 35905, 36292, 45365, 70474, 71810, 90730, 140948, 143620, 176185, 181460, 352370, 704740, 1515191, 3030382, 6060764, 7575955, 15151910, 30303820]

約数ペア:

[(1, 30303820), (2, 15151910), (4, 7575955), (5, 6060764), (10, 3030382), (20, 1515191), (43, 704740), (86, 352370), (167, 181460), (172, 176185), (211, 143620), (215, 140948), (334, 90730), (422, 71810), (430, 70474), (668, 45365), (835, 36292), (844, 35905), (860, 35237), (1055, 28724), (1670, 18146), (2110, 14362), (3340, 9073), (4220, 7181)]