19806290

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{487}}^1$

素因数の和:591

約数の個数: 48

約数和(自身を含む): 42057792

約数和(自身を除く): 22251502

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 83, 98, 166, 245, 415, 487, 490, 581, 830, 974, 1162, 2435, 2905, 3409, 4067, 4870, 5810, 6818, 8134, 17045, 20335, 23863, 34090, 40421, 40670, 47726, 80842, 119315, 202105, 238630, 282947, 404210, 565894, 1414735, 1980629, 2829470, 3961258, 9903145, 19806290]

約数ペア:

[(1, 19806290), (2, 9903145), (5, 3961258), (7, 2829470), (10, 1980629), (14, 1414735), (35, 565894), (49, 404210), (70, 282947), (83, 238630), (98, 202105), (166, 119315), (245, 80842), (415, 47726), (487, 40670), (490, 40421), (581, 34090), (830, 23863), (974, 20335), (1162, 17045), (2435, 8134), (2905, 6818), (3409, 5810), (4067, 4870)]