25259440

素因数分解:

$2^4\times 5^1\times {\mathrm{315743}}^1$

素因数の和:315756

約数の個数: 20

約数和(自身を含む): 58728384

約数和(自身を除く): 33468944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 315743, 631486, 1262972, 1578715, 2525944, 3157430, 5051888, 6314860, 12629720, 25259440]

約数ペア:

[(1, 25259440), (2, 12629720), (4, 6314860), (5, 5051888), (8, 3157430), (10, 2525944), (16, 1578715), (20, 1262972), (40, 631486), (80, 315743)]