20918220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{348637}}^1$

素因数の和:348649

約数の個数: 24

約数和(自身を含む): 58571184

約数和(自身を除く): 37652964

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 348637, 697274, 1045911, 1394548, 1743185, 2091822, 3486370, 4183644, 5229555, 6972740, 10459110, 20918220]

約数ペア:

[(1, 20918220), (2, 10459110), (3, 6972740), (4, 5229555), (5, 4183644), (6, 3486370), (10, 2091822), (12, 1743185), (15, 1394548), (20, 1045911), (30, 697274), (60, 348637)]