16990450

素因数分解:

$2^1\times 5^2\times {\mathrm{419}}^1\times {\mathrm{811}}^1$

素因数の和:1242

約数の個数: 24

約数和(自身を含む): 31716720

約数和(自身を除く): 14726270

約数列:

[1, 2, 5, 10, 25, 50, 419, 811, 838, 1622, 2095, 4055, 4190, 8110, 10475, 20275, 20950, 40550, 339809, 679618, 1699045, 3398090, 8495225, 16990450]

約数ペア:

[(1, 16990450), (2, 8495225), (5, 3398090), (10, 1699045), (25, 679618), (50, 339809), (419, 40550), (811, 20950), (838, 20275), (1622, 10475), (2095, 8110), (4055, 4190)]