19800328

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{443}}^1$

素因数の和:637

約数の個数: 32

約数和(自身を含む): 38468160

約数和(自身を除く): 18667832

約数列:

[1, 2, 4, 8, 37, 74, 148, 151, 296, 302, 443, 604, 886, 1208, 1772, 3544, 5587, 11174, 16391, 22348, 32782, 44696, 65564, 66893, 131128, 133786, 267572, 535144, 2475041, 4950082, 9900164, 19800328]

約数ペア:

[(1, 19800328), (2, 9900164), (4, 4950082), (8, 2475041), (37, 535144), (74, 267572), (148, 133786), (151, 131128), (296, 66893), (302, 65564), (443, 44696), (604, 32782), (886, 22348), (1208, 16391), (1772, 11174), (3544, 5587)]