12940990

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{16381}}^1$

素因数の和:16467

約数の個数: 16

約数和(自身を含む): 23590080

約数和(自身を除く): 10649090

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 16381, 32762, 81905, 163810, 1294099, 2588198, 6470495, 12940990]

約数ペア:

[(1, 12940990), (2, 6470495), (5, 2588198), (10, 1294099), (79, 163810), (158, 81905), (395, 32762), (790, 16381)]