68782360

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{8641}}^1$

素因数の和:8851

約数の個数: 32

約数和(自身を含む): 155556000

約数和(自身を除く): 86773640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 8641, 17282, 34564, 43205, 69128, 86410, 172820, 345640, 1719559, 3439118, 6878236, 8597795, 13756472, 17195590, 34391180, 68782360]

約数ペア:

[(1, 68782360), (2, 34391180), (4, 17195590), (5, 13756472), (8, 8597795), (10, 6878236), (20, 3439118), (40, 1719559), (199, 345640), (398, 172820), (796, 86410), (995, 69128), (1592, 43205), (1990, 34564), (3980, 17282), (7960, 8641)]