18779740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19163}}^1$

素因数の和:19186

約数の個数: 36

約数和(自身を含む): 45878616

約数和(自身を除く): 27098876

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 19163, 38326, 76652, 95815, 134141, 191630, 268282, 383260, 536564, 670705, 938987, 1341410, 1877974, 2682820, 3755948, 4694935, 9389870, 18779740]

約数ペア:

[(1, 18779740), (2, 9389870), (4, 4694935), (5, 3755948), (7, 2682820), (10, 1877974), (14, 1341410), (20, 938987), (28, 670705), (35, 536564), (49, 383260), (70, 268282), (98, 191630), (140, 134141), (196, 95815), (245, 76652), (490, 38326), (980, 19163)]