15281320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20107}}^1$

素因数の和:20137

約数の個数: 32

約数和(自身を含む): 36194400

約数和(自身を除く): 20913080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 20107, 40214, 80428, 100535, 160856, 201070, 382033, 402140, 764066, 804280, 1528132, 1910165, 3056264, 3820330, 7640660, 15281320]

約数ペア:

[(1, 15281320), (2, 7640660), (4, 3820330), (5, 3056264), (8, 1910165), (10, 1528132), (19, 804280), (20, 764066), (38, 402140), (40, 382033), (76, 201070), (95, 160856), (152, 100535), (190, 80428), (380, 40214), (760, 20107)]