81561260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{33703}}^1$

素因数の和:33734

約数の個数: 36

約数和(自身を含む): 188270544

約数和(自身を除く): 106709284

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 33703, 67406, 134812, 168515, 337030, 370733, 674060, 741466, 1482932, 1853665, 3707330, 4078063, 7414660, 8156126, 16312252, 20390315, 40780630, 81561260]

約数ペア:

[(1, 81561260), (2, 40780630), (4, 20390315), (5, 16312252), (10, 8156126), (11, 7414660), (20, 4078063), (22, 3707330), (44, 1853665), (55, 1482932), (110, 741466), (121, 674060), (220, 370733), (242, 337030), (484, 168515), (605, 134812), (1210, 67406), (2420, 33703)]