20000816

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{10331}}^1$

素因数の和:10361

約数の個数: 30

約数和(自身を含む): 42598836

約数和(自身を除く): 22598020

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 121, 176, 242, 484, 968, 1936, 10331, 20662, 41324, 82648, 113641, 165296, 227282, 454564, 909128, 1250051, 1818256, 2500102, 5000204, 10000408, 20000816]

約数ペア:

[(1, 20000816), (2, 10000408), (4, 5000204), (8, 2500102), (11, 1818256), (16, 1250051), (22, 909128), (44, 454564), (88, 227282), (121, 165296), (176, 113641), (242, 82648), (484, 41324), (968, 20662), (1936, 10331)]