20121794825

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{91121}}^1$

素因数の和:91226

約数の個数: 36

約数和(自身を含む): 27801504444

約数和(自身を除く): 7679709619

約数列:

[1, 5, 11, 25, 55, 73, 121, 275, 365, 605, 803, 1825, 3025, 4015, 8833, 20075, 44165, 91121, 220825, 455605, 1002331, 2278025, 5011655, 6651833, 11025641, 25058275, 33259165, 55128205, 73170163, 166295825, 275641025, 365850815, 804871793, 1829254075, 4024358965, 20121794825]

約数ペア:

[(1, 20121794825), (5, 4024358965), (11, 1829254075), (25, 804871793), (55, 365850815), (73, 275641025), (121, 166295825), (275, 73170163), (365, 55128205), (605, 33259165), (803, 25058275), (1825, 11025641), (3025, 6651833), (4015, 5011655), (8833, 2278025), (20075, 1002331), (44165, 455605), (91121, 220825)]