668719.00000000

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{449}}^1\times {\mathrm{857}}^1$

素因数の和:1325

約数の個数: 32

約数和(自身を含む): 81081000

約数和(自身を除く): 41062528

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 449, 857, 898, 1714, 1796, 3428, 3592, 5837, 6856, 11141, 11674, 22282, 23348, 44564, 46696, 89128, 384793, 769586, 1539172, 3078344, 5002309, 10004618, 20009236, 40018472]

約数ペア:

[(1, 40018472), (2, 20009236), (4, 10004618), (8, 5002309), (13, 3078344), (26, 1539172), (52, 769586), (104, 384793), (449, 89128), (857, 46696), (898, 44564), (1714, 23348), (1796, 22282), (3428, 11674), (3592, 11141), (5837, 6856)]