81272008

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{166541}}^1$

素因数の和:166608

約数の個数: 16

約数和(自身を含む): 154884060

約数和(自身を除く): 73612052

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 166541, 333082, 666164, 1332328, 10159001, 20318002, 40636004, 81272008]

約数ペア:

[(1, 81272008), (2, 40636004), (4, 20318002), (8, 10159001), (61, 1332328), (122, 666164), (244, 333082), (488, 166541)]