15567280

素因数分解:

$2^4\times 5^1\times {\mathrm{194591}}^1$

素因数の和:194604

約数の個数: 20

約数和(自身を含む): 36194112

約数和(自身を除く): 20626832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 194591, 389182, 778364, 972955, 1556728, 1945910, 3113456, 3891820, 7783640, 15567280]

約数ペア:

[(1, 15567280), (2, 7783640), (4, 3891820), (5, 3113456), (8, 1945910), (10, 1556728), (16, 972955), (20, 778364), (40, 389182), (80, 194591)]