4085140

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1301}}^1$

素因数の和:1467

約数の個数: 24

約数和(自身を含む): 8640072

約数和(自身を除く): 4554932

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1301, 1570, 2602, 3140, 5204, 6505, 13010, 26020, 204257, 408514, 817028, 1021285, 2042570, 4085140]

約数ペア:

[(1, 4085140), (2, 2042570), (4, 1021285), (5, 817028), (10, 408514), (20, 204257), (157, 26020), (314, 13010), (628, 6505), (785, 5204), (1301, 3140), (1570, 2602)]