20137105840

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^2\times {\mathrm{229}}^1\times {\mathrm{1307}}^1$

素因数の和:1607

約数の個数: 120

約数和(自身を含む): 48737885040

約数和(自身を除く): 28600779200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 229, 232, 290, 458, 464, 580, 841, 916, 1145, 1160, 1307, 1682, 1832, 2290, 2320, 2614, 3364, 3664, 4205, 4580, 5228, 6535, 6641, 6728, 8410, 9160, 10456, 13070, 13282, 13456, 16820, 18320, 20912, 26140, 26564, 33205, 33640, 37903, 52280, 53128, 66410, 67280, 75806, 104560, 106256, 132820, 151612, 189515, 192589, 265640, 299303, 303224, 379030, 385178, 531280, 598606, 606448, 758060, 770356, 962945, 1099187, 1197212, 1496515, 1516120, 1540712, 1925890, 2198374, 2394424, 2993030, 3032240, 3081424, 3851780, 4396748, 4788848, 5495935, 5986060, 7703560, 8679787, 8793496, 10991870, 11972120, 15407120, 17359574, 17586992, 21983740, 23944240, 34719148, 43398935, 43967480, 69438296, 86797870, 87934960, 138876592, 173595740, 251713823, 347191480, 503427646, 694382960, 1006855292, 1258569115, 2013710584, 2517138230, 4027421168, 5034276460, 10068552920, 20137105840]

約数ペア:

[(1, 20137105840), (2, 10068552920), (4, 5034276460), (5, 4027421168), (8, 2517138230), (10, 2013710584), (16, 1258569115), (20, 1006855292), (29, 694382960), (40, 503427646), (58, 347191480), (80, 251713823), (116, 173595740), (145, 138876592), (229, 87934960), (232, 86797870), (290, 69438296), (458, 43967480), (464, 43398935), (580, 34719148), (841, 23944240), (916, 21983740), (1145, 17586992), (1160, 17359574), (1307, 15407120), (1682, 11972120), (1832, 10991870), (2290, 8793496), (2320, 8679787), (2614, 7703560), (3364, 5986060), (3664, 5495935), (4205, 4788848), (4580, 4396748), (5228, 3851780), (6535, 3081424), (6641, 3032240), (6728, 2993030), (8410, 2394424), (9160, 2198374), (10456, 1925890), (13070, 1540712), (13282, 1516120), (13456, 1496515), (16820, 1197212), (18320, 1099187), (20912, 962945), (26140, 770356), (26564, 758060), (33205, 606448), (33640, 598606), (37903, 531280), (52280, 385178), (53128, 379030), (66410, 303224), (67280, 299303), (75806, 265640), (104560, 192589), (106256, 189515), (132820, 151612)]