25667920

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4519}}^1$

素因数の和:4603

約数の個数: 40

約数和(自身を含む): 60531840

約数和(自身を除く): 34863920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 4519, 5680, 9038, 18076, 22595, 36152, 45190, 72304, 90380, 180760, 320849, 361520, 641698, 1283396, 1604245, 2566792, 3208490, 5133584, 6416980, 12833960, 25667920]

約数ペア:

[(1, 25667920), (2, 12833960), (4, 6416980), (5, 5133584), (8, 3208490), (10, 2566792), (16, 1604245), (20, 1283396), (40, 641698), (71, 361520), (80, 320849), (142, 180760), (284, 90380), (355, 72304), (568, 45190), (710, 36152), (1136, 22595), (1420, 18076), (2840, 9038), (4519, 5680)]