20137984555

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1\times {\mathrm{1409}}^1$

素因数の和:1672

約数の個数: 64

約数和(自身を含む): 27697904640

約数和(自身を除く): 7559920085

約数列:

[1, 5, 13, 31, 41, 65, 155, 173, 205, 403, 533, 865, 1271, 1409, 2015, 2249, 2665, 5363, 6355, 7045, 7093, 11245, 16523, 18317, 26815, 35465, 43679, 57769, 69719, 82615, 91585, 92209, 218395, 219883, 243757, 288845, 348595, 461045, 567827, 750997, 1099415, 1218785, 1790839, 2839135, 2858479, 3168841, 3754985, 7556467, 8954195, 9994037, 14292395, 15844205, 23280907, 37782335, 49970185, 98234071, 116404535, 129922481, 309815147, 491170355, 649612405, 1549075735, 4027596911, 20137984555]

約数ペア:

[(1, 20137984555), (5, 4027596911), (13, 1549075735), (31, 649612405), (41, 491170355), (65, 309815147), (155, 129922481), (173, 116404535), (205, 98234071), (403, 49970185), (533, 37782335), (865, 23280907), (1271, 15844205), (1409, 14292395), (2015, 9994037), (2249, 8954195), (2665, 7556467), (5363, 3754985), (6355, 3168841), (7045, 2858479), (7093, 2839135), (11245, 1790839), (16523, 1218785), (18317, 1099415), (26815, 750997), (35465, 567827), (43679, 461045), (57769, 348595), (69719, 288845), (82615, 243757), (91585, 219883), (92209, 218395)]