207911275

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{311}}^1$

素因数の和:373

約数の個数: 72

約数和(自身を含む): 324166752

約数和(自身を除く): 116255477

約数列:

[1, 5, 11, 13, 17, 25, 55, 65, 85, 121, 143, 187, 221, 275, 311, 325, 425, 605, 715, 935, 1105, 1555, 1573, 2057, 2431, 3025, 3421, 3575, 4043, 4675, 5287, 5525, 7775, 7865, 10285, 12155, 17105, 20215, 26435, 26741, 37631, 39325, 44473, 51425, 58157, 60775, 68731, 85525, 101075, 132175, 133705, 188155, 222365, 290785, 343655, 489203, 639727, 668525, 756041, 940775, 1111825, 1453925, 1718275, 2446015, 3198635, 3780205, 8316451, 12230075, 15993175, 18901025, 41582255, 207911275]

約数ペア:

[(1, 207911275), (5, 41582255), (11, 18901025), (13, 15993175), (17, 12230075), (25, 8316451), (55, 3780205), (65, 3198635), (85, 2446015), (121, 1718275), (143, 1453925), (187, 1111825), (221, 940775), (275, 756041), (311, 668525), (325, 639727), (425, 489203), (605, 343655), (715, 290785), (935, 222365), (1105, 188155), (1555, 133705), (1573, 132175), (2057, 101075), (2431, 85525), (3025, 68731), (3421, 60775), (3575, 58157), (4043, 51425), (4675, 44473), (5287, 39325), (5525, 37631), (7775, 26741), (7865, 26435), (10285, 20215), (12155, 17105)]