86720180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{228211}}^1$

素因数の和:228239

約数の個数: 24

約数和(自身を含む): 191698080

約数和(自身を除く): 104977900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 228211, 456422, 912844, 1141055, 2282110, 4336009, 4564220, 8672018, 17344036, 21680045, 43360090, 86720180]

約数ペア:

[(1, 86720180), (2, 43360090), (4, 21680045), (5, 17344036), (10, 8672018), (19, 4564220), (20, 4336009), (38, 2282110), (76, 1141055), (95, 912844), (190, 456422), (380, 228211)]