187864687580

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{118901701}}^1$

素因数の和:118901789

約数の個数: 24

約数和(自身を含む): 399509718720

約数和(自身を除く): 211645031140

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 118901701, 237803402, 475606804, 594508505, 1189017010, 2378034020, 9393234379, 18786468758, 37572937516, 46966171895, 93932343790, 187864687580]

約数ペア:

[(1, 187864687580), (2, 93932343790), (4, 46966171895), (5, 37572937516), (10, 18786468758), (20, 9393234379), (79, 2378034020), (158, 1189017010), (316, 594508505), (395, 475606804), (790, 237803402), (1580, 118901701)]