210859000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{661}}^1$

素因数の和:722

約数の個数: 128

約数和(自身を含む): 557668800

約数和(自身を除く): 346809800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 29, 40, 44, 50, 55, 58, 88, 100, 110, 116, 125, 145, 200, 220, 232, 250, 275, 290, 319, 440, 500, 550, 580, 638, 661, 725, 1000, 1100, 1160, 1276, 1322, 1375, 1450, 1595, 2200, 2552, 2644, 2750, 2900, 3190, 3305, 3625, 5288, 5500, 5800, 6380, 6610, 7250, 7271, 7975, 11000, 12760, 13220, 14500, 14542, 15950, 16525, 19169, 26440, 29000, 29084, 31900, 33050, 36355, 38338, 39875, 58168, 63800, 66100, 72710, 76676, 79750, 82625, 95845, 132200, 145420, 153352, 159500, 165250, 181775, 191690, 210859, 290840, 319000, 330500, 363550, 383380, 421718, 479225, 661000, 727100, 766760, 843436, 908875, 958450, 1054295, 1454200, 1686872, 1817750, 1916900, 2108590, 2396125, 3635500, 3833800, 4217180, 4792250, 5271475, 7271000, 8434360, 9584500, 10542950, 19169000, 21085900, 26357375, 42171800, 52714750, 105429500, 210859000]

約数ペア:

[(1, 210859000), (2, 105429500), (4, 52714750), (5, 42171800), (8, 26357375), (10, 21085900), (11, 19169000), (20, 10542950), (22, 9584500), (25, 8434360), (29, 7271000), (40, 5271475), (44, 4792250), (50, 4217180), (55, 3833800), (58, 3635500), (88, 2396125), (100, 2108590), (110, 1916900), (116, 1817750), (125, 1686872), (145, 1454200), (200, 1054295), (220, 958450), (232, 908875), (250, 843436), (275, 766760), (290, 727100), (319, 661000), (440, 479225), (500, 421718), (550, 383380), (580, 363550), (638, 330500), (661, 319000), (725, 290840), (1000, 210859), (1100, 191690), (1160, 181775), (1276, 165250), (1322, 159500), (1375, 153352), (1450, 145420), (1595, 132200), (2200, 95845), (2552, 82625), (2644, 79750), (2750, 76676), (2900, 72710), (3190, 66100), (3305, 63800), (3625, 58168), (5288, 39875), (5500, 38338), (5800, 36355), (6380, 33050), (6610, 31900), (7250, 29084), (7271, 29000), (7975, 26440), (11000, 19169), (12760, 16525), (13220, 15950), (14500, 14542)]