138636760

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{9931}}^1$

素因数の和:10291

約数の個数: 32

約数和(自身を含む): 312858000

約数和(自身を除く): 174221240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 1396, 1745, 2792, 3490, 6980, 9931, 13960, 19862, 39724, 49655, 79448, 99310, 198620, 397240, 3465919, 6931838, 13863676, 17329595, 27727352, 34659190, 69318380, 138636760]

約数ペア:

[(1, 138636760), (2, 69318380), (4, 34659190), (5, 27727352), (8, 17329595), (10, 13863676), (20, 6931838), (40, 3465919), (349, 397240), (698, 198620), (1396, 99310), (1745, 79448), (2792, 49655), (3490, 39724), (6980, 19862), (9931, 13960)]