18920940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{315349}}^1$

素因数の和:315361

約数の個数: 24

約数和(自身を含む): 52978800

約数和(自身を除く): 34057860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 315349, 630698, 946047, 1261396, 1576745, 1892094, 3153490, 3784188, 4730235, 6306980, 9460470, 18920940]

約数ペア:

[(1, 18920940), (2, 9460470), (3, 6306980), (4, 4730235), (5, 3784188), (6, 3153490), (10, 1892094), (12, 1576745), (15, 1261396), (20, 946047), (30, 630698), (60, 315349)]