8919100

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{1129}}^1$

素因数の和:1222

約数の個数: 36

約数和(自身を含む): 19616800

約数和(自身を除く): 10697700

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 158, 316, 395, 790, 1129, 1580, 1975, 2258, 3950, 4516, 5645, 7900, 11290, 22580, 28225, 56450, 89191, 112900, 178382, 356764, 445955, 891910, 1783820, 2229775, 4459550, 8919100]

約数ペア:

[(1, 8919100), (2, 4459550), (4, 2229775), (5, 1783820), (10, 891910), (20, 445955), (25, 356764), (50, 178382), (79, 112900), (100, 89191), (158, 56450), (316, 28225), (395, 22580), (790, 11290), (1129, 7900), (1580, 5645), (1975, 4516), (2258, 3950)]