15839740

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{2309}}^1$

素因数の和:2339

約数の個数: 48

約数和(自身を含む): 38808000

約数和(自身を除く): 22968260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 2309, 3430, 4618, 6860, 9236, 11545, 16163, 23090, 32326, 46180, 64652, 80815, 113141, 161630, 226282, 323260, 452564, 565705, 791987, 1131410, 1583974, 2262820, 3167948, 3959935, 7919870, 15839740]

約数ペア:

[(1, 15839740), (2, 7919870), (4, 3959935), (5, 3167948), (7, 2262820), (10, 1583974), (14, 1131410), (20, 791987), (28, 565705), (35, 452564), (49, 323260), (70, 226282), (98, 161630), (140, 113141), (196, 80815), (245, 64652), (343, 46180), (490, 32326), (686, 23090), (980, 16163), (1372, 11545), (1715, 9236), (2309, 6860), (3430, 4618)]