279222440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{251}}^1$

素因数の和:435

約数の個数: 128

約数和(自身を含む): 751161600

約数和(自身を除く): 471939160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 137, 140, 145, 203, 232, 251, 274, 280, 290, 406, 502, 548, 580, 685, 812, 959, 1004, 1015, 1096, 1160, 1255, 1370, 1624, 1757, 1918, 2008, 2030, 2510, 2740, 3514, 3836, 3973, 4060, 4795, 5020, 5480, 7028, 7279, 7672, 7946, 8120, 8785, 9590, 10040, 14056, 14558, 15892, 17570, 19180, 19865, 27811, 29116, 31784, 34387, 35140, 36395, 38360, 39730, 50953, 55622, 58232, 68774, 70280, 72790, 79460, 101906, 111244, 137548, 139055, 145580, 158920, 171935, 203812, 222488, 240709, 254765, 275096, 278110, 291160, 343870, 407624, 481418, 509530, 556220, 687740, 962836, 997223, 1019060, 1112440, 1203545, 1375480, 1925672, 1994446, 2038120, 2407090, 3988892, 4814180, 4986115, 6980561, 7977784, 9628360, 9972230, 13961122, 19944460, 27922244, 34902805, 39888920, 55844488, 69805610, 139611220, 279222440]

約数ペア:

[(1, 279222440), (2, 139611220), (4, 69805610), (5, 55844488), (7, 39888920), (8, 34902805), (10, 27922244), (14, 19944460), (20, 13961122), (28, 9972230), (29, 9628360), (35, 7977784), (40, 6980561), (56, 4986115), (58, 4814180), (70, 3988892), (116, 2407090), (137, 2038120), (140, 1994446), (145, 1925672), (203, 1375480), (232, 1203545), (251, 1112440), (274, 1019060), (280, 997223), (290, 962836), (406, 687740), (502, 556220), (548, 509530), (580, 481418), (685, 407624), (812, 343870), (959, 291160), (1004, 278110), (1015, 275096), (1096, 254765), (1160, 240709), (1255, 222488), (1370, 203812), (1624, 171935), (1757, 158920), (1918, 145580), (2008, 139055), (2030, 137548), (2510, 111244), (2740, 101906), (3514, 79460), (3836, 72790), (3973, 70280), (4060, 68774), (4795, 58232), (5020, 55622), (5480, 50953), (7028, 39730), (7279, 38360), (7672, 36395), (7946, 35140), (8120, 34387), (8785, 31784), (9590, 29116), (10040, 27811), (14056, 19865), (14558, 19180), (15892, 17570)]