30897980

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{21163}}^1$

素因数の和:21245

約数の個数: 24

約数和(自身を含む): 65777712

約数和(自身を除く): 34879732

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 21163, 42326, 84652, 105815, 211630, 423260, 1544899, 3089798, 6179596, 7724495, 15448990, 30897980]

約数ペア:

[(1, 30897980), (2, 15448990), (4, 7724495), (5, 6179596), (10, 3089798), (20, 1544899), (73, 423260), (146, 211630), (292, 105815), (365, 84652), (730, 42326), (1460, 21163)]