278811520

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:133

約数の個数: 256

約数和(自身を含む): 789626880

約数和(自身を除く): 510815360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 31, 32, 40, 46, 47, 52, 62, 64, 65, 80, 92, 94, 104, 115, 124, 128, 130, 155, 160, 184, 188, 208, 230, 235, 248, 260, 299, 310, 320, 368, 376, 403, 416, 460, 470, 496, 520, 598, 611, 620, 640, 713, 736, 752, 806, 832, 920, 940, 992, 1040, 1081, 1196, 1222, 1240, 1426, 1457, 1472, 1495, 1504, 1612, 1664, 1840, 1880, 1984, 2015, 2080, 2162, 2392, 2444, 2480, 2852, 2914, 2944, 2990, 3008, 3055, 3224, 3565, 3680, 3760, 3968, 4030, 4160, 4324, 4784, 4888, 4960, 5405, 5704, 5828, 5980, 6016, 6110, 6448, 7130, 7285, 7360, 7520, 8060, 8320, 8648, 9269, 9568, 9776, 9920, 10810, 11408, 11656, 11960, 12220, 12896, 14053, 14260, 14570, 14720, 15040, 16120, 17296, 18538, 18941, 19136, 19552, 19840, 21620, 22816, 23312, 23920, 24440, 25792, 28106, 28520, 29140, 30080, 32240, 33511, 34592, 37076, 37882, 38272, 39104, 43240, 45632, 46345, 46624, 47840, 48880, 51584, 56212, 57040, 58280, 64480, 67022, 69184, 70265, 74152, 75764, 78208, 86480, 91264, 92690, 93248, 94705, 95680, 97760, 112424, 114080, 116560, 128960, 134044, 138368, 140530, 148304, 151528, 167555, 172960, 185380, 186496, 189410, 191360, 195520, 224848, 228160, 233120, 257920, 268088, 281060, 296608, 303056, 335110, 345920, 370760, 378820, 391040, 435643, 449696, 456320, 466240, 536176, 562120, 593216, 606112, 670220, 691840, 741520, 757640, 871286, 899392, 932480, 1072352, 1124240, 1186432, 1212224, 1340440, 1483040, 1515280, 1742572, 1798784, 2144704, 2178215, 2248480, 2424448, 2680880, 2966080, 3030560, 3485144, 4289408, 4356430, 4496960, 5361760, 5932160, 6061120, 6970288, 8712860, 8993920, 10723520, 12122240, 13940576, 17425720, 21447040, 27881152, 34851440, 55762304, 69702880, 139405760, 278811520]

約数ペア:

[(1, 278811520), (2, 139405760), (4, 69702880), (5, 55762304), (8, 34851440), (10, 27881152), (13, 21447040), (16, 17425720), (20, 13940576), (23, 12122240), (26, 10723520), (31, 8993920), (32, 8712860), (40, 6970288), (46, 6061120), (47, 5932160), (52, 5361760), (62, 4496960), (64, 4356430), (65, 4289408), (80, 3485144), (92, 3030560), (94, 2966080), (104, 2680880), (115, 2424448), (124, 2248480), (128, 2178215), (130, 2144704), (155, 1798784), (160, 1742572), (184, 1515280), (188, 1483040), (208, 1340440), (230, 1212224), (235, 1186432), (248, 1124240), (260, 1072352), (299, 932480), (310, 899392), (320, 871286), (368, 757640), (376, 741520), (403, 691840), (416, 670220), (460, 606112), (470, 593216), (496, 562120), (520, 536176), (598, 466240), (611, 456320), (620, 449696), (640, 435643), (713, 391040), (736, 378820), (752, 370760), (806, 345920), (832, 335110), (920, 303056), (940, 296608), (992, 281060), (1040, 268088), (1081, 257920), (1196, 233120), (1222, 228160), (1240, 224848), (1426, 195520), (1457, 191360), (1472, 189410), (1495, 186496), (1504, 185380), (1612, 172960), (1664, 167555), (1840, 151528), (1880, 148304), (1984, 140530), (2015, 138368), (2080, 134044), (2162, 128960), (2392, 116560), (2444, 114080), (2480, 112424), (2852, 97760), (2914, 95680), (2944, 94705), (2990, 93248), (3008, 92690), (3055, 91264), (3224, 86480), (3565, 78208), (3680, 75764), (3760, 74152), (3968, 70265), (4030, 69184), (4160, 67022), (4324, 64480), (4784, 58280), (4888, 57040), (4960, 56212), (5405, 51584), (5704, 48880), (5828, 47840), (5980, 46624), (6016, 46345), (6110, 45632), (6448, 43240), (7130, 39104), (7285, 38272), (7360, 37882), (7520, 37076), (8060, 34592), (8320, 33511), (8648, 32240), (9269, 30080), (9568, 29140), (9776, 28520), (9920, 28106), (10810, 25792), (11408, 24440), (11656, 23920), (11960, 23312), (12220, 22816), (12896, 21620), (14053, 19840), (14260, 19552), (14570, 19136), (14720, 18941), (15040, 18538), (16120, 17296)]