128434820

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{62347}}^1$

素因数の和:62459

約数の個数: 24

約数和(自身を含む): 272336064

約数和(自身を除く): 143901244

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 62347, 124694, 249388, 311735, 623470, 1246940, 6421741, 12843482, 25686964, 32108705, 64217410, 128434820]

約数ペア:

[(1, 128434820), (2, 64217410), (4, 32108705), (5, 25686964), (10, 12843482), (20, 6421741), (103, 1246940), (206, 623470), (412, 311735), (515, 249388), (1030, 124694), (2060, 62347)]