138920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1$

素因数の和:185

約数の個数: 32

約数和(自身を含む): 328320

約数和(自身を除く): 189400

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 151, 184, 230, 302, 460, 604, 755, 920, 1208, 1510, 3020, 3473, 6040, 6946, 13892, 17365, 27784, 34730, 69460, 138920]

約数ペア:

[(1, 138920), (2, 69460), (4, 34730), (5, 27784), (8, 17365), (10, 13892), (20, 6946), (23, 6040), (40, 3473), (46, 3020), (92, 1510), (115, 1208), (151, 920), (184, 755), (230, 604), (302, 460)]