28420550

素因数分解:

$2^1\times 5^2\times {\mathrm{521}}^1\times {\mathrm{1091}}^1$

素因数の和:1624

約数の個数: 24

約数和(自身を含む): 53012232

約数和(自身を除く): 24591682

約数列:

[1, 2, 5, 10, 25, 50, 521, 1042, 1091, 2182, 2605, 5210, 5455, 10910, 13025, 26050, 27275, 54550, 568411, 1136822, 2842055, 5684110, 14210275, 28420550]

約数ペア:

[(1, 28420550), (2, 14210275), (5, 5684110), (10, 2842055), (25, 1136822), (50, 568411), (521, 54550), (1042, 27275), (1091, 26050), (2182, 13025), (2605, 10910), (5210, 5455)]