138270280

素因数分解:

$2^3\times 5^1\times {\mathrm{1301}}^1\times {\mathrm{2657}}^1$

素因数の和:3969

約数の個数: 32

約数和(自身を含む): 311464440

約数和(自身を除く): 173194160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1301, 2602, 2657, 5204, 5314, 6505, 10408, 10628, 13010, 13285, 21256, 26020, 26570, 52040, 53140, 106280, 3456757, 6913514, 13827028, 17283785, 27654056, 34567570, 69135140, 138270280]

約数ペア:

[(1, 138270280), (2, 69135140), (4, 34567570), (5, 27654056), (8, 17283785), (10, 13827028), (20, 6913514), (40, 3456757), (1301, 106280), (2602, 53140), (2657, 52040), (5204, 26570), (5314, 26020), (6505, 21256), (10408, 13285), (10628, 13010)]