2019978777575

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{281}}^1\times {\mathrm{383}}^1\times {\mathrm{521}}^1$

素因数の和:1337

約数の個数: 96

約数和(自身を含む): 2775669202944

約数和(自身を除く): 755690425369

約数列:

[1, 5, 11, 25, 55, 131, 275, 281, 383, 521, 655, 1405, 1441, 1915, 2605, 3091, 3275, 4213, 5731, 7025, 7205, 9575, 13025, 15455, 21065, 28655, 36025, 36811, 50173, 68251, 77275, 105325, 107623, 143275, 146401, 184055, 199543, 250865, 341255, 404921, 538115, 551903, 732005, 750761, 920275, 997715, 1183853, 1254325, 1610411, 1706275, 2024605, 2194973, 2690575, 2759515, 3660025, 3753805, 4988575, 5919265, 8052055, 10123025, 10974865, 13797575, 14098613, 18769025, 19178531, 26140133, 29596325, 40260275, 54874325, 56071583, 70493065, 95892655, 130700665, 155084743, 210963841, 280357915, 287541463, 352465325, 479463275, 616787413, 653503325, 775423715, 1054819205, 1401789575, 1437707315, 3083937065, 3877118575, 5274096025, 7188536575, 7345377373, 15419685325, 36726886865, 80799151103, 183634434325, 403995755515, 2019978777575]

約数ペア:

[(1, 2019978777575), (5, 403995755515), (11, 183634434325), (25, 80799151103), (55, 36726886865), (131, 15419685325), (275, 7345377373), (281, 7188536575), (383, 5274096025), (521, 3877118575), (655, 3083937065), (1405, 1437707315), (1441, 1401789575), (1915, 1054819205), (2605, 775423715), (3091, 653503325), (3275, 616787413), (4213, 479463275), (5731, 352465325), (7025, 287541463), (7205, 280357915), (9575, 210963841), (13025, 155084743), (15455, 130700665), (21065, 95892655), (28655, 70493065), (36025, 56071583), (36811, 54874325), (50173, 40260275), (68251, 29596325), (77275, 26140133), (105325, 19178531), (107623, 18769025), (143275, 14098613), (146401, 13797575), (184055, 10974865), (199543, 10123025), (250865, 8052055), (341255, 5919265), (404921, 4988575), (538115, 3753805), (551903, 3660025), (732005, 2759515), (750761, 2690575), (920275, 2194973), (997715, 2024605), (1183853, 1706275), (1254325, 1610411)]