210937880

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:213

約数の個数: 128

約数和(自身を含む): 517881600

約数和(自身を除く): 306943720

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 47, 53, 58, 73, 94, 106, 116, 145, 146, 188, 212, 232, 235, 265, 290, 292, 365, 376, 424, 470, 530, 580, 584, 730, 940, 1060, 1160, 1363, 1460, 1537, 1880, 2117, 2120, 2491, 2726, 2920, 3074, 3431, 3869, 4234, 4982, 5452, 6148, 6815, 6862, 7685, 7738, 8468, 9964, 10585, 10904, 12296, 12455, 13630, 13724, 15370, 15476, 16936, 17155, 19345, 19928, 21170, 24910, 27260, 27448, 30740, 30952, 34310, 38690, 42340, 49820, 54520, 61480, 68620, 72239, 77380, 84680, 99499, 99640, 112201, 137240, 144478, 154760, 181843, 198998, 224402, 288956, 361195, 363686, 397996, 448804, 497495, 561005, 577912, 722390, 727372, 795992, 897608, 909215, 994990, 1122010, 1444780, 1454744, 1818430, 1989980, 2244020, 2889560, 3636860, 3979960, 4488040, 5273447, 7273720, 10546894, 21093788, 26367235, 42187576, 52734470, 105468940, 210937880]

約数ペア:

[(1, 210937880), (2, 105468940), (4, 52734470), (5, 42187576), (8, 26367235), (10, 21093788), (20, 10546894), (29, 7273720), (40, 5273447), (47, 4488040), (53, 3979960), (58, 3636860), (73, 2889560), (94, 2244020), (106, 1989980), (116, 1818430), (145, 1454744), (146, 1444780), (188, 1122010), (212, 994990), (232, 909215), (235, 897608), (265, 795992), (290, 727372), (292, 722390), (365, 577912), (376, 561005), (424, 497495), (470, 448804), (530, 397996), (580, 363686), (584, 361195), (730, 288956), (940, 224402), (1060, 198998), (1160, 181843), (1363, 154760), (1460, 144478), (1537, 137240), (1880, 112201), (2117, 99640), (2120, 99499), (2491, 84680), (2726, 77380), (2920, 72239), (3074, 68620), (3431, 61480), (3869, 54520), (4234, 49820), (4982, 42340), (5452, 38690), (6148, 34310), (6815, 30952), (6862, 30740), (7685, 27448), (7738, 27260), (8468, 24910), (9964, 21170), (10585, 19928), (10904, 19345), (12296, 17155), (12455, 16936), (13630, 15476), (13724, 15370)]