263056720

素因数分解:

$2^4\times 5^1\times {\mathrm{3288209}}^1$

素因数の和:3288222

約数の個数: 20

約数和(自身を含む): 611607060

約数和(自身を除く): 348550340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3288209, 6576418, 13152836, 16441045, 26305672, 32882090, 52611344, 65764180, 131528360, 263056720]

約数ペア:

[(1, 263056720), (2, 131528360), (4, 65764180), (5, 52611344), (8, 32882090), (10, 26305672), (16, 16441045), (20, 13152836), (40, 6576418), (80, 3288209)]