20304940

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{21601}}^1$

素因数の和:21657

約数の個数: 24

約数和(自身を含む): 43549632

約数和(自身を除く): 23244692

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 21601, 43202, 86404, 108005, 216010, 432020, 1015247, 2030494, 4060988, 5076235, 10152470, 20304940]

約数ペア:

[(1, 20304940), (2, 10152470), (4, 5076235), (5, 4060988), (10, 2030494), (20, 1015247), (47, 432020), (94, 216010), (188, 108005), (235, 86404), (470, 43202), (940, 21601)]