68991740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{499}}^1$

素因数の和:762

約数の個数: 48

約数和(自身を含む): 150528000

約数和(自身を除く): 81536260

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 223, 310, 446, 499, 620, 892, 998, 1115, 1996, 2230, 2495, 4460, 4990, 6913, 9980, 13826, 15469, 27652, 30938, 34565, 61876, 69130, 77345, 111277, 138260, 154690, 222554, 309380, 445108, 556385, 1112770, 2225540, 3449587, 6899174, 13798348, 17247935, 34495870, 68991740]

約数ペア:

[(1, 68991740), (2, 34495870), (4, 17247935), (5, 13798348), (10, 6899174), (20, 3449587), (31, 2225540), (62, 1112770), (124, 556385), (155, 445108), (223, 309380), (310, 222554), (446, 154690), (499, 138260), (620, 111277), (892, 77345), (998, 69130), (1115, 61876), (1996, 34565), (2230, 30938), (2495, 27652), (4460, 15469), (4990, 13826), (6913, 9980)]