13279480

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{173}}^1$

素因数の和:304

約数の個数: 64

約数和(自身を含む): 31946400

約数和(自身を除く): 18666920

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 101, 152, 173, 190, 202, 346, 380, 404, 505, 692, 760, 808, 865, 1010, 1384, 1730, 1919, 2020, 3287, 3460, 3838, 4040, 6574, 6920, 7676, 9595, 13148, 15352, 16435, 17473, 19190, 26296, 32870, 34946, 38380, 65740, 69892, 76760, 87365, 131480, 139784, 174730, 331987, 349460, 663974, 698920, 1327948, 1659935, 2655896, 3319870, 6639740, 13279480]

約数ペア:

[(1, 13279480), (2, 6639740), (4, 3319870), (5, 2655896), (8, 1659935), (10, 1327948), (19, 698920), (20, 663974), (38, 349460), (40, 331987), (76, 174730), (95, 139784), (101, 131480), (152, 87365), (173, 76760), (190, 69892), (202, 65740), (346, 38380), (380, 34946), (404, 32870), (505, 26296), (692, 19190), (760, 17473), (808, 16435), (865, 15352), (1010, 13148), (1384, 9595), (1730, 7676), (1919, 6920), (2020, 6574), (3287, 4040), (3460, 3838)]