85139380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{449}}^1\times {\mathrm{499}}^1$

素因数の和:976

約数の個数: 48

約数和(自身を含む): 189000000

約数和(自身を除く): 103860620

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 449, 499, 898, 998, 1796, 1996, 2245, 2495, 4490, 4990, 8531, 8980, 9481, 9980, 17062, 18962, 34124, 37924, 42655, 47405, 85310, 94810, 170620, 189620, 224051, 448102, 896204, 1120255, 2240510, 4256969, 4481020, 8513938, 17027876, 21284845, 42569690, 85139380]

約数ペア:

[(1, 85139380), (2, 42569690), (4, 21284845), (5, 17027876), (10, 8513938), (19, 4481020), (20, 4256969), (38, 2240510), (76, 1120255), (95, 896204), (190, 448102), (380, 224051), (449, 189620), (499, 170620), (898, 94810), (998, 85310), (1796, 47405), (1996, 42655), (2245, 37924), (2495, 34124), (4490, 18962), (4990, 17062), (8531, 9980), (8980, 9481)]