20120778531

素因数分解:

$3^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{547}}^1\times {\mathrm{5167}}^1$

素因数の和:5840

約数の個数: 48

約数和(自身を含む): 33576950784

約数和(自身を除く): 13456172253

約数列:

[1, 3, 7, 9, 21, 63, 113, 339, 547, 791, 1017, 1641, 2373, 3829, 4923, 5167, 7119, 11487, 15501, 34461, 36169, 46503, 61811, 108507, 185433, 325521, 432677, 556299, 583871, 1298031, 1751613, 2826349, 3894093, 4087097, 5254839, 8479047, 12261291, 19784443, 25437141, 36783873, 59353329, 178059987, 319377437, 958132311, 2235642059, 2874396933, 6706926177, 20120778531]

約数ペア:

[(1, 20120778531), (3, 6706926177), (7, 2874396933), (9, 2235642059), (21, 958132311), (63, 319377437), (113, 178059987), (339, 59353329), (547, 36783873), (791, 25437141), (1017, 19784443), (1641, 12261291), (2373, 8479047), (3829, 5254839), (4923, 4087097), (5167, 3894093), (7119, 2826349), (11487, 1751613), (15501, 1298031), (34461, 583871), (36169, 556299), (46503, 432677), (61811, 325521), (108507, 185433)]