25880560

素因数分解:

$2^4\times 5^1\times {\mathrm{323507}}^1$

素因数の和:323520

約数の個数: 20

約数和(自身を含む): 60172488

約数和(自身を除く): 34291928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 323507, 647014, 1294028, 1617535, 2588056, 3235070, 5176112, 6470140, 12940280, 25880560]

約数ペア:

[(1, 25880560), (2, 12940280), (4, 6470140), (5, 5176112), (8, 3235070), (10, 2588056), (16, 1617535), (20, 1294028), (40, 647014), (80, 323507)]