138733520

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{28429}}^1$

素因数の和:28503

約数の個数: 40

約数和(自身を含む): 327854760

約数和(自身を除く): 189121240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 28429, 56858, 113716, 142145, 227432, 284290, 454864, 568580, 1137160, 1734169, 2274320, 3468338, 6936676, 8670845, 13873352, 17341690, 27746704, 34683380, 69366760, 138733520]

約数ペア:

[(1, 138733520), (2, 69366760), (4, 34683380), (5, 27746704), (8, 17341690), (10, 13873352), (16, 8670845), (20, 6936676), (40, 3468338), (61, 2274320), (80, 1734169), (122, 1137160), (244, 568580), (305, 454864), (488, 284290), (610, 227432), (976, 142145), (1220, 113716), (2440, 56858), (4880, 28429)]