709640

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 1621080

約数和(自身を除く): 911440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 157, 226, 314, 452, 565, 628, 785, 904, 1130, 1256, 1570, 2260, 3140, 4520, 6280, 17741, 35482, 70964, 88705, 141928, 177410, 354820, 709640]

約数ペア:

[(1, 709640), (2, 354820), (4, 177410), (5, 141928), (8, 88705), (10, 70964), (20, 35482), (40, 17741), (113, 6280), (157, 4520), (226, 3140), (314, 2260), (452, 1570), (565, 1256), (628, 1130), (785, 904)]