261946480

素因数分解:

$2^4\times 5^1\times {\mathrm{3274331}}^1$

素因数の和:3274344

約数の個数: 20

約数和(自身を含む): 609025752

約数和(自身を除く): 347079272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3274331, 6548662, 13097324, 16371655, 26194648, 32743310, 52389296, 65486620, 130973240, 261946480]

約数ペア:

[(1, 261946480), (2, 130973240), (4, 65486620), (5, 52389296), (8, 32743310), (10, 26194648), (16, 16371655), (20, 13097324), (40, 6548662), (80, 3274331)]