131166520

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61871}}^1$

素因数の和:61935

約数の個数: 32

約数和(自身を含む): 300697920

約数和(自身を除く): 169531400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 61871, 123742, 247484, 309355, 494968, 618710, 1237420, 2474840, 3279163, 6558326, 13116652, 16395815, 26233304, 32791630, 65583260, 131166520]

約数ペア:

[(1, 131166520), (2, 65583260), (4, 32791630), (5, 26233304), (8, 16395815), (10, 13116652), (20, 6558326), (40, 3279163), (53, 2474840), (106, 1237420), (212, 618710), (265, 494968), (424, 309355), (530, 247484), (1060, 123742), (2120, 61871)]