1990180

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{659}}^1$

素因数の和:819

約数の個数: 24

約数和(自身を含む): 4213440

約数和(自身を除く): 2223260

約数列:

[1, 2, 4, 5, 10, 20, 151, 302, 604, 659, 755, 1318, 1510, 2636, 3020, 3295, 6590, 13180, 99509, 199018, 398036, 497545, 995090, 1990180]

約数ペア:

[(1, 1990180), (2, 995090), (4, 497545), (5, 398036), (10, 199018), (20, 99509), (151, 13180), (302, 6590), (604, 3295), (659, 3020), (755, 2636), (1318, 1510)]