8215990

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{691}}^1$

素因数の和:768

約数の個数: 32

約数和(自身を含む): 15694560

約数和(自身を除く): 7478570

約数列:

[1, 2, 5, 10, 29, 41, 58, 82, 145, 205, 290, 410, 691, 1189, 1382, 2378, 3455, 5945, 6910, 11890, 20039, 28331, 40078, 56662, 100195, 141655, 200390, 283310, 821599, 1643198, 4107995, 8215990]

約数ペア:

[(1, 8215990), (2, 4107995), (5, 1643198), (10, 821599), (29, 283310), (41, 200390), (58, 141655), (82, 100195), (145, 56662), (205, 40078), (290, 28331), (410, 20039), (691, 11890), (1189, 6910), (1382, 5945), (2378, 3455)]