7899977090

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{9999971}}^1$

素因数の和:10000057

約数の個数: 16

約数和(自身を含む): 14399959680

約数和(自身を除く): 6499982590

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 9999971, 19999942, 49999855, 99999710, 789997709, 1579995418, 3949988545, 7899977090]

約数ペア:

[(1, 7899977090), (2, 3949988545), (5, 1579995418), (10, 789997709), (79, 99999710), (158, 49999855), (395, 19999942), (790, 9999971)]