354820

素因数分解:

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

素因数の和:279

約数の個数: 24

約数和(自身を含む): 756504

約数和(自身を除く): 401684

約数列:

[1, 2, 4, 5, 10, 20, 113, 157, 226, 314, 452, 565, 628, 785, 1130, 1570, 2260, 3140, 17741, 35482, 70964, 88705, 177410, 354820]

約数ペア:

[(1, 354820), (2, 177410), (4, 88705), (5, 70964), (10, 35482), (20, 17741), (113, 3140), (157, 2260), (226, 1570), (314, 1130), (452, 785), (565, 628)]