25816720

素因数分解:

$2^4\times 5^1\times {\mathrm{322709}}^1$

素因数の和:322722

約数の個数: 20

約数和(自身を含む): 60024060

約数和(自身を除く): 34207340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 322709, 645418, 1290836, 1613545, 2581672, 3227090, 5163344, 6454180, 12908360, 25816720]

約数ペア:

[(1, 25816720), (2, 12908360), (4, 6454180), (5, 5163344), (8, 3227090), (10, 2581672), (16, 1613545), (20, 1290836), (40, 645418), (80, 322709)]