7920915

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:307

約数の個数: 32

約数和(自身を含む): 13305600

約数和(自身を除く): 5384685

約数列:

[1, 3, 5, 15, 29, 87, 131, 139, 145, 393, 417, 435, 655, 695, 1965, 2085, 3799, 4031, 11397, 12093, 18209, 18995, 20155, 54627, 56985, 60465, 91045, 273135, 528061, 1584183, 2640305, 7920915]

約数ペア:

[(1, 7920915), (3, 2640305), (5, 1584183), (15, 528061), (29, 273135), (87, 91045), (131, 60465), (139, 56985), (145, 54627), (393, 20155), (417, 18995), (435, 18209), (655, 12093), (695, 11397), (1965, 4031), (2085, 3799)]