206840120

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{7823}}^1$

素因数の和:8495

約数の個数: 32

約数和(自身を含む): 466153920

約数和(自身を除く): 259313800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1322, 2644, 3305, 5288, 6610, 7823, 13220, 15646, 26440, 31292, 39115, 62584, 78230, 156460, 312920, 5171003, 10342006, 20684012, 25855015, 41368024, 51710030, 103420060, 206840120]

約数ペア:

[(1, 206840120), (2, 103420060), (4, 51710030), (5, 41368024), (8, 25855015), (10, 20684012), (20, 10342006), (40, 5171003), (661, 312920), (1322, 156460), (2644, 78230), (3305, 62584), (5288, 39115), (6610, 31292), (7823, 26440), (13220, 15646)]