20761700

素因数分解:

$2^2\times 5^2\times {\mathrm{191}}^1\times {\mathrm{1087}}^1$

素因数の和:1292

約数の個数: 36

約数和(自身を含む): 45330432

約数和(自身を除く): 24568732

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 191, 382, 764, 955, 1087, 1910, 2174, 3820, 4348, 4775, 5435, 9550, 10870, 19100, 21740, 27175, 54350, 108700, 207617, 415234, 830468, 1038085, 2076170, 4152340, 5190425, 10380850, 20761700]

約数ペア:

[(1, 20761700), (2, 10380850), (4, 5190425), (5, 4152340), (10, 2076170), (20, 1038085), (25, 830468), (50, 415234), (100, 207617), (191, 108700), (382, 54350), (764, 27175), (955, 21740), (1087, 19100), (1910, 10870), (2174, 9550), (3820, 5435), (4348, 4775)]