138994960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{133649}}^1$

素因数の和:133675

約数の個数: 40

約数和(自身を含む): 348024600

約数和(自身を除く): 209029640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 133649, 267298, 534596, 668245, 1069192, 1336490, 1737437, 2138384, 2672980, 3474874, 5345960, 6949748, 8687185, 10691920, 13899496, 17374370, 27798992, 34748740, 69497480, 138994960]

約数ペア:

[(1, 138994960), (2, 69497480), (4, 34748740), (5, 27798992), (8, 17374370), (10, 13899496), (13, 10691920), (16, 8687185), (20, 6949748), (26, 5345960), (40, 3474874), (52, 2672980), (65, 2138384), (80, 1737437), (104, 1336490), (130, 1069192), (208, 668245), (260, 534596), (520, 267298), (1040, 133649)]