20802180025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{19391}}^1$

素因数の和:19542

約数の個数: 48

約数和(自身を含む): 29086138368

約数和(自身を除く): 8283958343

約数列:

[1, 5, 11, 25, 47, 55, 83, 235, 275, 415, 517, 913, 1175, 2075, 2585, 3901, 4565, 12925, 19391, 19505, 22825, 42911, 96955, 97525, 213301, 214555, 484775, 911377, 1066505, 1072775, 1609453, 4556885, 5332525, 8047265, 10025147, 17703983, 22784425, 40236325, 50125735, 75644291, 88519915, 250628675, 378221455, 442599575, 832087201, 1891107275, 4160436005, 20802180025]

約数ペア:

[(1, 20802180025), (5, 4160436005), (11, 1891107275), (25, 832087201), (47, 442599575), (55, 378221455), (83, 250628675), (235, 88519915), (275, 75644291), (415, 50125735), (517, 40236325), (913, 22784425), (1175, 17703983), (2075, 10025147), (2585, 8047265), (3901, 5332525), (4565, 4556885), (12925, 1609453), (19391, 1072775), (19505, 1066505), (22825, 911377), (42911, 484775), (96955, 214555), (97525, 213301)]