18904690

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{941}}^1$

素因数の和:1003

約数の個数: 48

約数和(自身を含む): 40592664

約数和(自身を除く): 21687974

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 49, 70, 82, 98, 205, 245, 287, 410, 490, 574, 941, 1435, 1882, 2009, 2870, 4018, 4705, 6587, 9410, 10045, 13174, 20090, 32935, 38581, 46109, 65870, 77162, 92218, 192905, 230545, 270067, 385810, 461090, 540134, 1350335, 1890469, 2700670, 3780938, 9452345, 18904690]

約数ペア:

[(1, 18904690), (2, 9452345), (5, 3780938), (7, 2700670), (10, 1890469), (14, 1350335), (35, 540134), (41, 461090), (49, 385810), (70, 270067), (82, 230545), (98, 192905), (205, 92218), (245, 77162), (287, 65870), (410, 46109), (490, 38581), (574, 32935), (941, 20090), (1435, 13174), (1882, 10045), (2009, 9410), (2870, 6587), (4018, 4705)]