69081980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{3109}}^1$

素因数の和:3230

約数の個数: 48

約数和(自身を含む): 159878880

約数和(自身を除く): 90796900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 202, 220, 404, 505, 1010, 1111, 2020, 2222, 3109, 4444, 5555, 6218, 11110, 12436, 15545, 22220, 31090, 34199, 62180, 68398, 136796, 170995, 314009, 341990, 628018, 683980, 1256036, 1570045, 3140090, 3454099, 6280180, 6908198, 13816396, 17270495, 34540990, 69081980]

約数ペア:

[(1, 69081980), (2, 34540990), (4, 17270495), (5, 13816396), (10, 6908198), (11, 6280180), (20, 3454099), (22, 3140090), (44, 1570045), (55, 1256036), (101, 683980), (110, 628018), (202, 341990), (220, 314009), (404, 170995), (505, 136796), (1010, 68398), (1111, 62180), (2020, 34199), (2222, 31090), (3109, 22220), (4444, 15545), (5555, 12436), (6218, 11110)]