20407890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{680263}}^1$

素因数の和:680273

約数の個数: 16

約数和(自身を含む): 48979008

約数和(自身を除く): 28571118

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 680263, 1360526, 2040789, 3401315, 4081578, 6802630, 10203945, 20407890]

約数ペア:

[(1, 20407890), (2, 10203945), (3, 6802630), (5, 4081578), (6, 3401315), (10, 2040789), (15, 1360526), (30, 680263)]