25616720

素因数分解:

$2^4\times 5^1\times {\mathrm{320209}}^1$

素因数の和:320222

約数の個数: 20

約数和(自身を含む): 59559060

約数和(自身を除く): 33942340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 320209, 640418, 1280836, 1601045, 2561672, 3202090, 5123344, 6404180, 12808360, 25616720]

約数ペア:

[(1, 25616720), (2, 12808360), (4, 6404180), (5, 5123344), (8, 3202090), (10, 2561672), (16, 1601045), (20, 1280836), (40, 640418), (80, 320209)]