78211618130

素因数分解:

$2^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{39701329}}^1$

素因数の和:39701533

約数の個数: 16

約数和(自身を含む): 141495540120

約数和(自身を除く): 63283921990

約数列:

[1, 2, 5, 10, 197, 394, 985, 1970, 39701329, 79402658, 198506645, 397013290, 7821161813, 15642323626, 39105809065, 78211618130]

約数ペア:

[(1, 78211618130), (2, 39105809065), (5, 15642323626), (10, 7821161813), (197, 397013290), (394, 198506645), (985, 79402658), (1970, 39701329)]