15851320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20857}}^1$

素因数の和:20887

約数の個数: 32

約数和(自身を含む): 37544400

約数和(自身を除く): 21693080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 20857, 41714, 83428, 104285, 166856, 208570, 396283, 417140, 792566, 834280, 1585132, 1981415, 3170264, 3962830, 7925660, 15851320]

約数ペア:

[(1, 15851320), (2, 7925660), (4, 3962830), (5, 3170264), (8, 1981415), (10, 1585132), (19, 834280), (20, 792566), (38, 417140), (40, 396283), (76, 208570), (95, 166856), (152, 104285), (190, 83428), (380, 41714), (760, 20857)]