42805820

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{21191}}^1$

素因数の和:21301

約数の個数: 24

約数和(自身を含む): 90786528

約数和(自身を除く): 47980708

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 21191, 42382, 84764, 105955, 211910, 423820, 2140291, 4280582, 8561164, 10701455, 21402910, 42805820]

約数ペア:

[(1, 42805820), (2, 21402910), (4, 10701455), (5, 8561164), (10, 4280582), (20, 2140291), (101, 423820), (202, 211910), (404, 105955), (505, 84764), (1010, 42382), (2020, 21191)]