2180972620

素因数分解:

$2^2\times 5^1\times {\mathrm{13121}}^1\times {\mathrm{8311}}^1$

素因数の和:21441

約数の個数: 24

約数和(自身を含む): 4580942688

約数和(自身を除く): 2399970068

約数列:

[1, 2, 4, 5, 10, 20, 8311, 13121, 16622, 26242, 33244, 41555, 52484, 65605, 83110, 131210, 166220, 262420, 109048631, 218097262, 436194524, 545243155, 1090486310, 2180972620]

約数ペア:

[(1, 2180972620), (2, 1090486310), (4, 545243155), (5, 436194524), (10, 218097262), (20, 109048631), (8311, 262420), (13121, 166220), (16622, 131210), (26242, 83110), (33244, 65605), (41555, 52484)]