20198940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{336649}}^1$

素因数の和:336661

約数の個数: 24

約数和(自身を含む): 56557200

約数和(自身を除く): 36358260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 336649, 673298, 1009947, 1346596, 1683245, 2019894, 3366490, 4039788, 5049735, 6732980, 10099470, 20198940]

約数ペア:

[(1, 20198940), (2, 10099470), (3, 6732980), (4, 5049735), (5, 4039788), (6, 3366490), (10, 2019894), (12, 1683245), (15, 1346596), (20, 1009947), (30, 673298), (60, 336649)]