19874890

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{863}}^1$

素因数の和:931

約数の個数: 48

約数和(自身を含む): 42550272

約数和(自身を除く): 22675382

約数列:

[1, 2, 5, 7, 10, 14, 35, 47, 49, 70, 94, 98, 235, 245, 329, 470, 490, 658, 863, 1645, 1726, 2303, 3290, 4315, 4606, 6041, 8630, 11515, 12082, 23030, 30205, 40561, 42287, 60410, 81122, 84574, 202805, 211435, 283927, 405610, 422870, 567854, 1419635, 1987489, 2839270, 3974978, 9937445, 19874890]

約数ペア:

[(1, 19874890), (2, 9937445), (5, 3974978), (7, 2839270), (10, 1987489), (14, 1419635), (35, 567854), (47, 422870), (49, 405610), (70, 283927), (94, 211435), (98, 202805), (235, 84574), (245, 81122), (329, 60410), (470, 42287), (490, 40561), (658, 30205), (863, 23030), (1645, 12082), (1726, 11515), (2303, 8630), (3290, 6041), (4315, 4606)]