87980090

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{7919}}^1$

素因数の和:8038

約数の個数: 32

約数和(自身を含む): 174493440

約数和(自身を除く): 86513350

約数列:

[1, 2, 5, 10, 11, 22, 55, 101, 110, 202, 505, 1010, 1111, 2222, 5555, 7919, 11110, 15838, 39595, 79190, 87109, 174218, 435545, 799819, 871090, 1599638, 3999095, 7998190, 8798009, 17596018, 43990045, 87980090]

約数ペア:

[(1, 87980090), (2, 43990045), (5, 17596018), (10, 8798009), (11, 7998190), (22, 3999095), (55, 1599638), (101, 871090), (110, 799819), (202, 435545), (505, 174218), (1010, 87109), (1111, 79190), (2222, 39595), (5555, 15838), (7919, 11110)]