71334280

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{17657}}^1$

素因数の和:17769

約数の個数: 32

約数和(自身を含む): 162100440

約数和(自身を除く): 90766160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 17657, 35314, 70628, 88285, 141256, 176570, 353140, 706280, 1783357, 3566714, 7133428, 8916785, 14266856, 17833570, 35667140, 71334280]

約数ペア:

[(1, 71334280), (2, 35667140), (4, 17833570), (5, 14266856), (8, 8916785), (10, 7133428), (20, 3566714), (40, 1783357), (101, 706280), (202, 353140), (404, 176570), (505, 141256), (808, 88285), (1010, 70628), (2020, 35314), (4040, 17657)]