71820170

素因数分解:

$2^1\times 5^1\times {\mathrm{179}}^1\times {\mathrm{40123}}^1$

素因数の和:40309

約数の個数: 16

約数和(自身を含む): 130001760

約数和(自身を除く): 58181590

約数列:

[1, 2, 5, 10, 179, 358, 895, 1790, 40123, 80246, 200615, 401230, 7182017, 14364034, 35910085, 71820170]

約数ペア:

[(1, 71820170), (2, 35910085), (5, 14364034), (10, 7182017), (179, 401230), (358, 200615), (895, 80246), (1790, 40123)]