4047460

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1289}}^1$

素因数の和:1455

約数の個数: 24

約数和(自身を含む): 8560440

約数和(自身を除く): 4512980

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1289, 1570, 2578, 3140, 5156, 6445, 12890, 25780, 202373, 404746, 809492, 1011865, 2023730, 4047460]

約数ペア:

[(1, 4047460), (2, 2023730), (4, 1011865), (5, 809492), (10, 404746), (20, 202373), (157, 25780), (314, 12890), (628, 6445), (785, 5156), (1289, 3140), (1570, 2578)]