30894940

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{21757}}^1$

素因数の和:21837

約数の個数: 24

約数和(自身を含む): 65796192

約数和(自身を除く): 34901252

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 21757, 43514, 87028, 108785, 217570, 435140, 1544747, 3089494, 6178988, 7723735, 15447470, 30894940]

約数ペア:

[(1, 30894940), (2, 15447470), (4, 7723735), (5, 6178988), (10, 3089494), (20, 1544747), (71, 435140), (142, 217570), (284, 108785), (355, 87028), (710, 43514), (1420, 21757)]