68685260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{643}}^1$

素因数の和:775

約数の個数: 72

約数和(自身を含む): 169590960

約数和(自身を除く): 100905700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 109, 140, 196, 218, 245, 436, 490, 545, 643, 763, 980, 1090, 1286, 1526, 2180, 2572, 3052, 3215, 3815, 4501, 5341, 6430, 7630, 9002, 10682, 12860, 15260, 18004, 21364, 22505, 26705, 31507, 45010, 53410, 63014, 70087, 90020, 106820, 126028, 140174, 157535, 280348, 315070, 350435, 490609, 630140, 700870, 981218, 1401740, 1962436, 2453045, 3434263, 4906090, 6868526, 9812180, 13737052, 17171315, 34342630, 68685260]

約数ペア:

[(1, 68685260), (2, 34342630), (4, 17171315), (5, 13737052), (7, 9812180), (10, 6868526), (14, 4906090), (20, 3434263), (28, 2453045), (35, 1962436), (49, 1401740), (70, 981218), (98, 700870), (109, 630140), (140, 490609), (196, 350435), (218, 315070), (245, 280348), (436, 157535), (490, 140174), (545, 126028), (643, 106820), (763, 90020), (980, 70087), (1090, 63014), (1286, 53410), (1526, 45010), (2180, 31507), (2572, 26705), (3052, 22505), (3215, 21364), (3815, 18004), (4501, 15260), (5341, 12860), (6430, 10682), (7630, 9002)]