20742220

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{14207}}^1$

素因数の和:14289

約数の個数: 24

約数和(自身を含む): 44158464

約数和(自身を除く): 23416244

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 14207, 28414, 56828, 71035, 142070, 284140, 1037111, 2074222, 4148444, 5185555, 10371110, 20742220]

約数ペア:

[(1, 20742220), (2, 10371110), (4, 5185555), (5, 4148444), (10, 2074222), (20, 1037111), (73, 284140), (146, 142070), (292, 71035), (365, 56828), (730, 28414), (1460, 14207)]