8889100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{8081}}^1$

素因数の和:8106

約数の個数: 36

約数和(自身を含む): 21045528

約数和(自身を除く): 12156428

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 8081, 16162, 32324, 40405, 80810, 88891, 161620, 177782, 202025, 355564, 404050, 444455, 808100, 888910, 1777820, 2222275, 4444550, 8889100]

約数ペア:

[(1, 8889100), (2, 4444550), (4, 2222275), (5, 1777820), (10, 888910), (11, 808100), (20, 444455), (22, 404050), (25, 355564), (44, 202025), (50, 177782), (55, 161620), (100, 88891), (110, 80810), (220, 40405), (275, 32324), (550, 16162), (1100, 8081)]