19880010

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{220889}}^1$

素因数の和:220902

約数の個数: 24

約数和(自身を含む): 51688260

約数和(自身を除く): 31808250

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 220889, 441778, 662667, 1104445, 1325334, 1988001, 2208890, 3313335, 3976002, 6626670, 9940005, 19880010]

約数ペア:

[(1, 19880010), (2, 9940005), (3, 6626670), (5, 3976002), (6, 3313335), (9, 2208890), (10, 1988001), (15, 1325334), (18, 1104445), (30, 662667), (45, 441778), (90, 220889)]