21074800

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:143

約数の個数: 120

約数和(自身を含む): 55353600

約数和(自身を除く): 34278800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 47, 50, 59, 76, 80, 94, 95, 100, 118, 152, 188, 190, 200, 235, 236, 295, 304, 376, 380, 400, 470, 472, 475, 590, 752, 760, 893, 940, 944, 950, 1121, 1175, 1180, 1475, 1520, 1786, 1880, 1900, 2242, 2350, 2360, 2773, 2950, 3572, 3760, 3800, 4465, 4484, 4700, 4720, 5546, 5605, 5900, 7144, 7600, 8930, 8968, 9400, 11092, 11210, 11800, 13865, 14288, 17860, 17936, 18800, 22184, 22325, 22420, 23600, 27730, 28025, 35720, 44368, 44650, 44840, 52687, 55460, 56050, 69325, 71440, 89300, 89680, 105374, 110920, 112100, 138650, 178600, 210748, 221840, 224200, 263435, 277300, 357200, 421496, 448400, 526870, 554600, 842992, 1053740, 1109200, 1317175, 2107480, 2634350, 4214960, 5268700, 10537400, 21074800]

約数ペア:

[(1, 21074800), (2, 10537400), (4, 5268700), (5, 4214960), (8, 2634350), (10, 2107480), (16, 1317175), (19, 1109200), (20, 1053740), (25, 842992), (38, 554600), (40, 526870), (47, 448400), (50, 421496), (59, 357200), (76, 277300), (80, 263435), (94, 224200), (95, 221840), (100, 210748), (118, 178600), (152, 138650), (188, 112100), (190, 110920), (200, 105374), (235, 89680), (236, 89300), (295, 71440), (304, 69325), (376, 56050), (380, 55460), (400, 52687), (470, 44840), (472, 44650), (475, 44368), (590, 35720), (752, 28025), (760, 27730), (893, 23600), (940, 22420), (944, 22325), (950, 22184), (1121, 18800), (1175, 17936), (1180, 17860), (1475, 14288), (1520, 13865), (1786, 11800), (1880, 11210), (1900, 11092), (2242, 9400), (2350, 8968), (2360, 8930), (2773, 7600), (2950, 7144), (3572, 5900), (3760, 5605), (3800, 5546), (4465, 4720), (4484, 4700)]