79996040

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{19801}}^1$

素因数の和:19913

約数の個数: 32

約数和(自身を含む): 181782360

約数和(自身を除く): 101786320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 19801, 39602, 79204, 99005, 158408, 198010, 396020, 792040, 1999901, 3999802, 7999604, 9999505, 15999208, 19999010, 39998020, 79996040]

約数ペア:

[(1, 79996040), (2, 39998020), (4, 19999010), (5, 15999208), (8, 9999505), (10, 7999604), (20, 3999802), (40, 1999901), (101, 792040), (202, 396020), (404, 198010), (505, 158408), (808, 99005), (1010, 79204), (2020, 39602), (4040, 19801)]