20190665

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{1451}}^1$

素因数の和:1501

約数の個数: 24

約数和(自身を含む): 27808704

約数和(自身を除く): 7618039

約数列:

[1, 5, 11, 23, 55, 115, 121, 253, 605, 1265, 1451, 2783, 7255, 13915, 15961, 33373, 79805, 166865, 175571, 367103, 877855, 1835515, 4038133, 20190665]

約数ペア:

[(1, 20190665), (5, 4038133), (11, 1835515), (23, 877855), (55, 367103), (115, 175571), (121, 166865), (253, 79805), (605, 33373), (1265, 15961), (1451, 13915), (2783, 7255)]