80172100

素因数分解:

$2^2\times 5^2\times {\mathrm{569}}^1\times {\mathrm{1409}}^1$

素因数の和:1992

約数の個数: 36

約数和(自身を含む): 174402900

約数和(自身を除く): 94230800

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 569, 1138, 1409, 2276, 2818, 2845, 5636, 5690, 7045, 11380, 14090, 14225, 28180, 28450, 35225, 56900, 70450, 140900, 801721, 1603442, 3206884, 4008605, 8017210, 16034420, 20043025, 40086050, 80172100]

約数ペア:

[(1, 80172100), (2, 40086050), (4, 20043025), (5, 16034420), (10, 8017210), (20, 4008605), (25, 3206884), (50, 1603442), (100, 801721), (569, 140900), (1138, 70450), (1409, 56900), (2276, 35225), (2818, 28450), (2845, 28180), (5636, 14225), (5690, 14090), (7045, 11380)]