320196664

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{20857}}^1$

素因数の和:20983

約数の個数: 32

約数和(自身を含む): 638254800

約数和(自身を除く): 318058136

約数列:

[1, 2, 4, 8, 19, 38, 76, 101, 152, 202, 404, 808, 1919, 3838, 7676, 15352, 20857, 41714, 83428, 166856, 396283, 792566, 1585132, 2106557, 3170264, 4213114, 8426228, 16852456, 40024583, 80049166, 160098332, 320196664]

約数ペア:

[(1, 320196664), (2, 160098332), (4, 80049166), (8, 40024583), (19, 16852456), (38, 8426228), (76, 4213114), (101, 3170264), (152, 2106557), (202, 1585132), (404, 792566), (808, 396283), (1919, 166856), (3838, 83428), (7676, 41714), (15352, 20857)]