211930880

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:175

約数の個数: 216

約数和(自身を含む): 615162240

約数和(自身を除く): 403231360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 64, 70, 80, 98, 109, 112, 124, 128, 140, 155, 160, 196, 217, 218, 224, 245, 248, 256, 280, 310, 320, 392, 434, 436, 448, 490, 496, 545, 560, 620, 640, 763, 784, 868, 872, 896, 980, 992, 1085, 1090, 1120, 1240, 1280, 1519, 1526, 1568, 1736, 1744, 1792, 1960, 1984, 2170, 2180, 2240, 2480, 3038, 3052, 3136, 3379, 3472, 3488, 3815, 3920, 3968, 4340, 4360, 4480, 4960, 5341, 6076, 6104, 6272, 6758, 6944, 6976, 7595, 7630, 7840, 7936, 8680, 8720, 8960, 9920, 10682, 12152, 12208, 12544, 13516, 13888, 13952, 15190, 15260, 15680, 16895, 17360, 17440, 19840, 21364, 23653, 24304, 24416, 26705, 27032, 27776, 27904, 30380, 30520, 31360, 33790, 34720, 34880, 39680, 42728, 47306, 48608, 48832, 53410, 54064, 55552, 60760, 61040, 62720, 67580, 69440, 69760, 85456, 94612, 97216, 97664, 106820, 108128, 118265, 121520, 122080, 135160, 138880, 139520, 165571, 170912, 189224, 194432, 195328, 213640, 216256, 236530, 243040, 244160, 270320, 277760, 331142, 341824, 378448, 388864, 427280, 432512, 473060, 486080, 488320, 540640, 662284, 683648, 756896, 827855, 854560, 865024, 946120, 972160, 976640, 1081280, 1324568, 1367296, 1513792, 1655710, 1709120, 1892240, 1944320, 2162560, 2649136, 3027584, 3311420, 3418240, 3784480, 4325120, 5298272, 6055168, 6622840, 6836480, 7568960, 10596544, 13245680, 15137920, 21193088, 26491360, 30275840, 42386176, 52982720, 105965440, 211930880]

約数ペア:

[(1, 211930880), (2, 105965440), (4, 52982720), (5, 42386176), (7, 30275840), (8, 26491360), (10, 21193088), (14, 15137920), (16, 13245680), (20, 10596544), (28, 7568960), (31, 6836480), (32, 6622840), (35, 6055168), (40, 5298272), (49, 4325120), (56, 3784480), (62, 3418240), (64, 3311420), (70, 3027584), (80, 2649136), (98, 2162560), (109, 1944320), (112, 1892240), (124, 1709120), (128, 1655710), (140, 1513792), (155, 1367296), (160, 1324568), (196, 1081280), (217, 976640), (218, 972160), (224, 946120), (245, 865024), (248, 854560), (256, 827855), (280, 756896), (310, 683648), (320, 662284), (392, 540640), (434, 488320), (436, 486080), (448, 473060), (490, 432512), (496, 427280), (545, 388864), (560, 378448), (620, 341824), (640, 331142), (763, 277760), (784, 270320), (868, 244160), (872, 243040), (896, 236530), (980, 216256), (992, 213640), (1085, 195328), (1090, 194432), (1120, 189224), (1240, 170912), (1280, 165571), (1519, 139520), (1526, 138880), (1568, 135160), (1736, 122080), (1744, 121520), (1792, 118265), (1960, 108128), (1984, 106820), (2170, 97664), (2180, 97216), (2240, 94612), (2480, 85456), (3038, 69760), (3052, 69440), (3136, 67580), (3379, 62720), (3472, 61040), (3488, 60760), (3815, 55552), (3920, 54064), (3968, 53410), (4340, 48832), (4360, 48608), (4480, 47306), (4960, 42728), (5341, 39680), (6076, 34880), (6104, 34720), (6272, 33790), (6758, 31360), (6944, 30520), (6976, 30380), (7595, 27904), (7630, 27776), (7840, 27032), (7936, 26705), (8680, 24416), (8720, 24304), (8960, 23653), (9920, 21364), (10682, 19840), (12152, 17440), (12208, 17360), (12544, 16895), (13516, 15680), (13888, 15260), (13952, 15190)]