89402540

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{22691}}^1$

素因数の和:22897

約数の個数: 24

約数和(自身を含む): 188706672

約数和(自身を除く): 99304132

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 22691, 45382, 90764, 113455, 226910, 453820, 4470127, 8940254, 17880508, 22350635, 44701270, 89402540]

約数ペア:

[(1, 89402540), (2, 44701270), (4, 22350635), (5, 17880508), (10, 8940254), (20, 4470127), (197, 453820), (394, 226910), (788, 113455), (985, 90764), (1970, 45382), (3940, 22691)]