20767700

素因数分解:

$2^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{2141}}^1$

素因数の和:2252

約数の個数: 36

約数和(自身を含む): 45551772

約数和(自身を除く): 24784072

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 194, 388, 485, 970, 1940, 2141, 2425, 4282, 4850, 8564, 9700, 10705, 21410, 42820, 53525, 107050, 207677, 214100, 415354, 830708, 1038385, 2076770, 4153540, 5191925, 10383850, 20767700]

約数ペア:

[(1, 20767700), (2, 10383850), (4, 5191925), (5, 4153540), (10, 2076770), (20, 1038385), (25, 830708), (50, 415354), (97, 214100), (100, 207677), (194, 107050), (388, 53525), (485, 42820), (970, 21410), (1940, 10705), (2141, 9700), (2425, 8564), (4282, 4850)]