19556180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{3407}}^1$

素因数の和:3464

約数の個数: 48

約数和(自身を含む): 48093696

約数和(自身を除く): 28537516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 574, 820, 1148, 1435, 2870, 3407, 5740, 6814, 13628, 17035, 23849, 34070, 47698, 68140, 95396, 119245, 139687, 238490, 279374, 476980, 558748, 698435, 977809, 1396870, 1955618, 2793740, 3911236, 4889045, 9778090, 19556180]

約数ペア:

[(1, 19556180), (2, 9778090), (4, 4889045), (5, 3911236), (7, 2793740), (10, 1955618), (14, 1396870), (20, 977809), (28, 698435), (35, 558748), (41, 476980), (70, 279374), (82, 238490), (140, 139687), (164, 119245), (205, 95396), (287, 68140), (410, 47698), (574, 34070), (820, 23849), (1148, 17035), (1435, 13628), (2870, 6814), (3407, 5740)]