25781120

素因数分解:

$2^7\times 5^1\times {\mathrm{40283}}^1$

素因数の和:40302

約数の個数: 32

約数和(自身を含む): 61634520

約数和(自身を除く): 35853400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 40283, 80566, 161132, 201415, 322264, 402830, 644528, 805660, 1289056, 1611320, 2578112, 3222640, 5156224, 6445280, 12890560, 25781120]

約数ペア:

[(1, 25781120), (2, 12890560), (4, 6445280), (5, 5156224), (8, 3222640), (10, 2578112), (16, 1611320), (20, 1289056), (32, 805660), (40, 644528), (64, 402830), (80, 322264), (128, 201415), (160, 161132), (320, 80566), (640, 40283)]