64353700

素因数分解:

$2^2\times 5^2\times {\mathrm{397}}^1\times {\mathrm{1621}}^1$

素因数の和:2032

約数の個数: 36

約数和(自身を含む): 140085652

約数和(自身を除く): 75731952

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 397, 794, 1588, 1621, 1985, 3242, 3970, 6484, 7940, 8105, 9925, 16210, 19850, 32420, 39700, 40525, 81050, 162100, 643537, 1287074, 2574148, 3217685, 6435370, 12870740, 16088425, 32176850, 64353700]

約数ペア:

[(1, 64353700), (2, 32176850), (4, 16088425), (5, 12870740), (10, 6435370), (20, 3217685), (25, 2574148), (50, 1287074), (100, 643537), (397, 162100), (794, 81050), (1588, 40525), (1621, 39700), (1985, 32420), (3242, 19850), (3970, 16210), (6484, 9925), (7940, 8105)]