38918940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{648649}}^1$

素因数の和:648661

約数の個数: 24

約数和(自身を含む): 108973200

約数和(自身を除く): 70054260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 648649, 1297298, 1945947, 2594596, 3243245, 3891894, 6486490, 7783788, 9729735, 12972980, 19459470, 38918940]

約数ペア:

[(1, 38918940), (2, 19459470), (3, 12972980), (4, 9729735), (5, 7783788), (6, 6486490), (10, 3891894), (12, 3243245), (15, 2594596), (20, 1945947), (30, 1297298), (60, 648649)]