20220080

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1283}}^1$

素因数の和:1493

約数の個数: 40

約数和(自身を含む): 47287152

約数和(自身を除く): 27067072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1283, 1576, 1970, 2566, 3152, 3940, 5132, 6415, 7880, 10264, 12830, 15760, 20528, 25660, 51320, 102640, 252751, 505502, 1011004, 1263755, 2022008, 2527510, 4044016, 5055020, 10110040, 20220080]

約数ペア:

[(1, 20220080), (2, 10110040), (4, 5055020), (5, 4044016), (8, 2527510), (10, 2022008), (16, 1263755), (20, 1011004), (40, 505502), (80, 252751), (197, 102640), (394, 51320), (788, 25660), (985, 20528), (1283, 15760), (1576, 12830), (1970, 10264), (2566, 7880), (3152, 6415), (3940, 5132)]