13157680

素因数分解:

$2^4\times 5^1\times {\mathrm{164471}}^1$

素因数の和:164484

約数の個数: 20

約数和(自身を含む): 30591792

約数和(自身を除く): 17434112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 164471, 328942, 657884, 822355, 1315768, 1644710, 2631536, 3289420, 6578840, 13157680]

約数ペア:

[(1, 13157680), (2, 6578840), (4, 3289420), (5, 2631536), (8, 1644710), (10, 1315768), (16, 822355), (20, 657884), (40, 328942), (80, 164471)]