81868810

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{75109}}^1$

素因数の和:75225

約数の個数: 16

約数和(自身を含む): 148717800

約数和(自身を除く): 66848990

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 75109, 150218, 375545, 751090, 8186881, 16373762, 40934405, 81868810]

約数ペア:

[(1, 81868810), (2, 40934405), (5, 16373762), (10, 8186881), (109, 751090), (218, 375545), (545, 150218), (1090, 75109)]