404550940

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{50951}}^1$

素因数の和:51357

約数の個数: 24

約数和(自身を含む): 851713632

約数和(自身を除く): 447162692

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1588, 1985, 3970, 7940, 50951, 101902, 203804, 254755, 509510, 1019020, 20227547, 40455094, 80910188, 101137735, 202275470, 404550940]

約数ペア:

[(1, 404550940), (2, 202275470), (4, 101137735), (5, 80910188), (10, 40455094), (20, 20227547), (397, 1019020), (794, 509510), (1588, 254755), (1985, 203804), (3970, 101902), (7940, 50951)]