221056640

素因数分解:

$2^7\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{53}}^1$

素因数の和:112

約数の個数: 256

約数和(自身を含む): 660960000

約数和(自身を除く): 439903360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 53, 56, 64, 70, 76, 80, 95, 98, 106, 112, 128, 133, 140, 152, 160, 190, 196, 212, 224, 245, 265, 266, 280, 304, 320, 343, 371, 380, 392, 424, 448, 490, 530, 532, 560, 608, 640, 665, 686, 742, 760, 784, 848, 896, 931, 980, 1007, 1060, 1064, 1120, 1216, 1330, 1372, 1484, 1520, 1568, 1696, 1715, 1855, 1862, 1960, 2014, 2120, 2128, 2240, 2432, 2597, 2660, 2744, 2968, 3040, 3136, 3392, 3430, 3710, 3724, 3920, 4028, 4240, 4256, 4480, 4655, 5035, 5194, 5320, 5488, 5936, 6080, 6272, 6517, 6784, 6860, 7049, 7420, 7448, 7840, 8056, 8480, 8512, 9310, 10070, 10388, 10640, 10976, 11872, 12160, 12985, 13034, 13720, 14098, 14840, 14896, 15680, 16112, 16960, 17024, 18179, 18620, 20140, 20776, 21280, 21952, 23744, 25970, 26068, 27440, 28196, 29680, 29792, 31360, 32224, 32585, 33920, 35245, 36358, 37240, 40280, 41552, 42560, 43904, 47488, 49343, 51940, 52136, 54880, 56392, 59360, 59584, 64448, 65170, 70490, 72716, 74480, 80560, 83104, 85120, 90895, 98686, 103880, 104272, 109760, 112784, 118720, 119168, 128896, 130340, 140980, 145432, 148960, 161120, 166208, 181790, 197372, 207760, 208544, 219520, 225568, 237440, 246715, 260680, 281960, 290864, 297920, 322240, 332416, 345401, 363580, 394744, 415520, 417088, 451136, 493430, 521360, 563920, 581728, 595840, 644480, 690802, 727160, 789488, 831040, 834176, 902272, 986860, 1042720, 1127840, 1163456, 1381604, 1454320, 1578976, 1662080, 1727005, 1973720, 2085440, 2255680, 2326912, 2763208, 2908640, 3157952, 3454010, 3947440, 4170880, 4511360, 5526416, 5817280, 6315904, 6908020, 7894880, 11052832, 11634560, 13816040, 15789760, 22105664, 27632080, 31579520, 44211328, 55264160, 110528320, 221056640]

約数ペア:

[(1, 221056640), (2, 110528320), (4, 55264160), (5, 44211328), (7, 31579520), (8, 27632080), (10, 22105664), (14, 15789760), (16, 13816040), (19, 11634560), (20, 11052832), (28, 7894880), (32, 6908020), (35, 6315904), (38, 5817280), (40, 5526416), (49, 4511360), (53, 4170880), (56, 3947440), (64, 3454010), (70, 3157952), (76, 2908640), (80, 2763208), (95, 2326912), (98, 2255680), (106, 2085440), (112, 1973720), (128, 1727005), (133, 1662080), (140, 1578976), (152, 1454320), (160, 1381604), (190, 1163456), (196, 1127840), (212, 1042720), (224, 986860), (245, 902272), (265, 834176), (266, 831040), (280, 789488), (304, 727160), (320, 690802), (343, 644480), (371, 595840), (380, 581728), (392, 563920), (424, 521360), (448, 493430), (490, 451136), (530, 417088), (532, 415520), (560, 394744), (608, 363580), (640, 345401), (665, 332416), (686, 322240), (742, 297920), (760, 290864), (784, 281960), (848, 260680), (896, 246715), (931, 237440), (980, 225568), (1007, 219520), (1060, 208544), (1064, 207760), (1120, 197372), (1216, 181790), (1330, 166208), (1372, 161120), (1484, 148960), (1520, 145432), (1568, 140980), (1696, 130340), (1715, 128896), (1855, 119168), (1862, 118720), (1960, 112784), (2014, 109760), (2120, 104272), (2128, 103880), (2240, 98686), (2432, 90895), (2597, 85120), (2660, 83104), (2744, 80560), (2968, 74480), (3040, 72716), (3136, 70490), (3392, 65170), (3430, 64448), (3710, 59584), (3724, 59360), (3920, 56392), (4028, 54880), (4240, 52136), (4256, 51940), (4480, 49343), (4655, 47488), (5035, 43904), (5194, 42560), (5320, 41552), (5488, 40280), (5936, 37240), (6080, 36358), (6272, 35245), (6517, 33920), (6784, 32585), (6860, 32224), (7049, 31360), (7420, 29792), (7448, 29680), (7840, 28196), (8056, 27440), (8480, 26068), (8512, 25970), (9310, 23744), (10070, 21952), (10388, 21280), (10640, 20776), (10976, 20140), (11872, 18620), (12160, 18179), (12985, 17024), (13034, 16960), (13720, 16112), (14098, 15680), (14840, 14896)]