25979120

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{2557}}^1$

素因数の和:2697

約数の個数: 40

約数和(自身を含む): 60900864

約数和(自身を除く): 34921744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 2557, 5080, 5114, 10160, 10228, 12785, 20456, 25570, 40912, 51140, 102280, 204560, 324739, 649478, 1298956, 1623695, 2597912, 3247390, 5195824, 6494780, 12989560, 25979120]

約数ペア:

[(1, 25979120), (2, 12989560), (4, 6494780), (5, 5195824), (8, 3247390), (10, 2597912), (16, 1623695), (20, 1298956), (40, 649478), (80, 324739), (127, 204560), (254, 102280), (508, 51140), (635, 40912), (1016, 25570), (1270, 20456), (2032, 12785), (2540, 10228), (2557, 10160), (5080, 5114)]