28447280

素因数分解:

$2^4\times 5^1\times {\mathrm{355591}}^1$

素因数の和:355604

約数の個数: 20

約数和(自身を含む): 66140112

約数和(自身を除く): 37692832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 355591, 711182, 1422364, 1777955, 2844728, 3555910, 5689456, 7111820, 14223640, 28447280]

約数ペア:

[(1, 28447280), (2, 14223640), (4, 7111820), (5, 5689456), (8, 3555910), (10, 2844728), (16, 1777955), (20, 1422364), (40, 711182), (80, 355591)]