31442288

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1987}}^1$

素因数の和:2061

約数の個数: 40

約数和(自身を含む): 65079168

約数和(自身を除く): 33636880

約数列:

[1, 2, 4, 8, 16, 23, 43, 46, 86, 92, 172, 184, 344, 368, 688, 989, 1978, 1987, 3956, 3974, 7912, 7948, 15824, 15896, 31792, 45701, 85441, 91402, 170882, 182804, 341764, 365608, 683528, 731216, 1367056, 1965143, 3930286, 7860572, 15721144, 31442288]

約数ペア:

[(1, 31442288), (2, 15721144), (4, 7860572), (8, 3930286), (16, 1965143), (23, 1367056), (43, 731216), (46, 683528), (86, 365608), (92, 341764), (172, 182804), (184, 170882), (344, 91402), (368, 85441), (688, 45701), (989, 31792), (1978, 15896), (1987, 15824), (3956, 7948), (3974, 7912)]