81595880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{1063}}^1$

素因数の和:1194

約数の個数: 64

約数和(自身を含む): 195350400

約数和(自身を除く): 113754520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 101, 152, 190, 202, 380, 404, 505, 760, 808, 1010, 1063, 1919, 2020, 2126, 3838, 4040, 4252, 5315, 7676, 8504, 9595, 10630, 15352, 19190, 20197, 21260, 38380, 40394, 42520, 76760, 80788, 100985, 107363, 161576, 201970, 214726, 403940, 429452, 536815, 807880, 858904, 1073630, 2039897, 2147260, 4079794, 4294520, 8159588, 10199485, 16319176, 20398970, 40797940, 81595880]

約数ペア:

[(1, 81595880), (2, 40797940), (4, 20398970), (5, 16319176), (8, 10199485), (10, 8159588), (19, 4294520), (20, 4079794), (38, 2147260), (40, 2039897), (76, 1073630), (95, 858904), (101, 807880), (152, 536815), (190, 429452), (202, 403940), (380, 214726), (404, 201970), (505, 161576), (760, 107363), (808, 100985), (1010, 80788), (1063, 76760), (1919, 42520), (2020, 40394), (2126, 38380), (3838, 21260), (4040, 20197), (4252, 19190), (5315, 15352), (7676, 10630), (8504, 9595)]