25544380

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{17989}}^1$

素因数の和:18069

約数の個数: 24

約数和(自身を含む): 54401760

約数和(自身を除く): 28857380

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 17989, 35978, 71956, 89945, 179890, 359780, 1277219, 2554438, 5108876, 6386095, 12772190, 25544380]

約数ペア:

[(1, 25544380), (2, 12772190), (4, 6386095), (5, 5108876), (10, 2554438), (20, 1277219), (71, 359780), (142, 179890), (284, 89945), (355, 71956), (710, 35978), (1420, 17989)]