1388235220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{55663}}^1$

素因数の和:55744

約数の個数: 48

約数和(自身を含む): 3086012160

約数和(自身を除く): 1697776940

約数列:

[1, 2, 4, 5, 10, 20, 29, 43, 58, 86, 116, 145, 172, 215, 290, 430, 580, 860, 1247, 2494, 4988, 6235, 12470, 24940, 55663, 111326, 222652, 278315, 556630, 1113260, 1614227, 2393509, 3228454, 4787018, 6456908, 8071135, 9574036, 11967545, 16142270, 23935090, 32284540, 47870180, 69411761, 138823522, 277647044, 347058805, 694117610, 1388235220]

約数ペア:

[(1, 1388235220), (2, 694117610), (4, 347058805), (5, 277647044), (10, 138823522), (20, 69411761), (29, 47870180), (43, 32284540), (58, 23935090), (86, 16142270), (116, 11967545), (145, 9574036), (172, 8071135), (215, 6456908), (290, 4787018), (430, 3228454), (580, 2393509), (860, 1614227), (1247, 1113260), (2494, 556630), (4988, 278315), (6235, 222652), (12470, 111326), (24940, 55663)]