20874680

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{5167}}^1$

素因数の和:5279

約数の個数: 32

約数和(自身を含む): 47442240

約数和(自身を除く): 26567560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 5167, 10334, 20668, 25835, 41336, 51670, 103340, 206680, 521867, 1043734, 2087468, 2609335, 4174936, 5218670, 10437340, 20874680]

約数ペア:

[(1, 20874680), (2, 10437340), (4, 5218670), (5, 4174936), (8, 2609335), (10, 2087468), (20, 1043734), (40, 521867), (101, 206680), (202, 103340), (404, 51670), (505, 41336), (808, 25835), (1010, 20668), (2020, 10334), (4040, 5167)]