51866480

素因数分解:

$2^4\times 5^1\times {\mathrm{648331}}^1$

素因数の和:648344

約数の個数: 20

約数和(自身を含む): 120589752

約数和(自身を除く): 68723272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 648331, 1296662, 2593324, 3241655, 5186648, 6483310, 10373296, 12966620, 25933240, 51866480]

約数ペア:

[(1, 51866480), (2, 25933240), (4, 12966620), (5, 10373296), (8, 6483310), (10, 5186648), (16, 3241655), (20, 2593324), (40, 1296662), (80, 648331)]