20201993775

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{182123}}^1$

素因数の和:182185

約数の個数: 72

約数和(自身を含む): 39633824880

約数和(自身を除く): 19431831105

約数列:

[1, 3, 5, 9, 15, 17, 25, 29, 45, 51, 75, 85, 87, 145, 153, 225, 255, 261, 425, 435, 493, 725, 765, 1275, 1305, 1479, 2175, 2465, 3825, 4437, 6525, 7395, 12325, 22185, 36975, 110925, 182123, 546369, 910615, 1639107, 2731845, 3096091, 4553075, 5281567, 8195535, 9288273, 13659225, 15480455, 15844701, 26407835, 27864819, 40977675, 46441365, 47534103, 77402275, 79223505, 89786639, 132039175, 139324095, 232206825, 237670515, 269359917, 396117525, 448933195, 696620475, 808079751, 1188352575, 1346799585, 2244665975, 4040398755, 6733997925, 20201993775]

約数ペア:

[(1, 20201993775), (3, 6733997925), (5, 4040398755), (9, 2244665975), (15, 1346799585), (17, 1188352575), (25, 808079751), (29, 696620475), (45, 448933195), (51, 396117525), (75, 269359917), (85, 237670515), (87, 232206825), (145, 139324095), (153, 132039175), (225, 89786639), (255, 79223505), (261, 77402275), (425, 47534103), (435, 46441365), (493, 40977675), (725, 27864819), (765, 26407835), (1275, 15844701), (1305, 15480455), (1479, 13659225), (2175, 9288273), (2465, 8195535), (3825, 5281567), (4437, 4553075), (6525, 3096091), (7395, 2731845), (12325, 1639107), (22185, 910615), (36975, 546369), (110925, 182123)]