20578700

素因数分解:

$2^2\times 5^2\times {\mathrm{73}}^1\times {\mathrm{2819}}^1$

素因数の和:2906

約数の個数: 36

約数和(自身を含む): 45283560

約数和(自身を除く): 24704860

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 73, 100, 146, 292, 365, 730, 1460, 1825, 2819, 3650, 5638, 7300, 11276, 14095, 28190, 56380, 70475, 140950, 205787, 281900, 411574, 823148, 1028935, 2057870, 4115740, 5144675, 10289350, 20578700]

約数ペア:

[(1, 20578700), (2, 10289350), (4, 5144675), (5, 4115740), (10, 2057870), (20, 1028935), (25, 823148), (50, 411574), (73, 281900), (100, 205787), (146, 140950), (292, 70475), (365, 56380), (730, 28190), (1460, 14095), (1825, 11276), (2819, 7300), (3650, 5638)]