28178940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{469649}}^1$

素因数の和:469661

約数の個数: 24

約数和(自身を含む): 78901200

約数和(自身を除く): 50722260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 469649, 939298, 1408947, 1878596, 2348245, 2817894, 4696490, 5635788, 7044735, 9392980, 14089470, 28178940]

約数ペア:

[(1, 28178940), (2, 14089470), (3, 9392980), (4, 7044735), (5, 5635788), (6, 4696490), (10, 2817894), (12, 2348245), (15, 1878596), (20, 1408947), (30, 939298), (60, 469649)]