81278030

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{74567}}^1$

素因数の和:74683

約数の個数: 16

約数和(自身を含む): 147644640

約数和(自身を除く): 66366610

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 74567, 149134, 372835, 745670, 8127803, 16255606, 40639015, 81278030]

約数ペア:

[(1, 81278030), (2, 40639015), (5, 16255606), (10, 8127803), (109, 745670), (218, 372835), (545, 149134), (1090, 74567)]