77450840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{1009}}^1$

素因数の和:1140

約数の個数: 64

約数和(自身を含む): 185436000

約数和(自身を除く): 107985160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 101, 152, 190, 202, 380, 404, 505, 760, 808, 1009, 1010, 1919, 2018, 2020, 3838, 4036, 4040, 5045, 7676, 8072, 9595, 10090, 15352, 19171, 19190, 20180, 38342, 38380, 40360, 76684, 76760, 95855, 101909, 153368, 191710, 203818, 383420, 407636, 509545, 766840, 815272, 1019090, 1936271, 2038180, 3872542, 4076360, 7745084, 9681355, 15490168, 19362710, 38725420, 77450840]

約数ペア:

[(1, 77450840), (2, 38725420), (4, 19362710), (5, 15490168), (8, 9681355), (10, 7745084), (19, 4076360), (20, 3872542), (38, 2038180), (40, 1936271), (76, 1019090), (95, 815272), (101, 766840), (152, 509545), (190, 407636), (202, 383420), (380, 203818), (404, 191710), (505, 153368), (760, 101909), (808, 95855), (1009, 76760), (1010, 76684), (1919, 40360), (2018, 38380), (2020, 38342), (3838, 20180), (4036, 19190), (4040, 19171), (5045, 15352), (7676, 10090), (8072, 9595)]