257925360

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{821}}^1$

素因数の和:872

約数の個数: 320

約数和(自身を含む): 1056789504

約数和(自身を除く): 798864144

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 17, 20, 21, 22, 24, 28, 30, 33, 34, 35, 40, 42, 44, 48, 51, 55, 56, 60, 66, 68, 70, 77, 80, 84, 85, 88, 102, 105, 110, 112, 119, 120, 132, 136, 140, 154, 165, 168, 170, 176, 187, 204, 210, 220, 231, 238, 240, 255, 264, 272, 280, 308, 330, 336, 340, 357, 374, 385, 408, 420, 440, 462, 476, 510, 528, 560, 561, 595, 616, 660, 680, 714, 748, 770, 816, 821, 840, 880, 924, 935, 952, 1020, 1122, 1155, 1190, 1232, 1309, 1320, 1360, 1428, 1496, 1540, 1642, 1680, 1785, 1848, 1870, 1904, 2040, 2244, 2310, 2380, 2463, 2618, 2640, 2805, 2856, 2992, 3080, 3284, 3570, 3696, 3740, 3927, 4080, 4105, 4488, 4620, 4760, 4926, 5236, 5610, 5712, 5747, 6160, 6545, 6568, 7140, 7480, 7854, 8210, 8976, 9031, 9240, 9520, 9852, 10472, 11220, 11494, 12315, 13090, 13136, 13957, 14280, 14960, 15708, 16420, 17241, 18062, 18480, 19635, 19704, 20944, 22440, 22988, 24630, 26180, 27093, 27914, 28560, 28735, 31416, 32840, 34482, 36124, 39270, 39408, 41871, 44880, 45155, 45976, 49260, 52360, 54186, 55828, 57470, 62832, 63217, 65680, 68964, 69785, 72248, 78540, 83742, 86205, 90310, 91952, 97699, 98520, 104720, 108372, 111656, 114940, 126434, 135465, 137928, 139570, 144496, 153527, 157080, 167484, 172410, 180620, 189651, 195398, 197040, 209355, 216744, 223312, 229880, 252868, 270930, 275856, 279140, 293097, 307054, 314160, 316085, 334968, 344820, 361240, 379302, 390796, 418710, 433488, 459760, 460581, 488495, 505736, 541860, 558280, 586194, 614108, 632170, 669936, 689640, 722480, 758604, 767635, 781592, 837420, 921162, 948255, 976990, 1011472, 1074689, 1083720, 1116560, 1172388, 1228216, 1264340, 1379280, 1465485, 1517208, 1535270, 1563184, 1674840, 1842324, 1896510, 1953980, 2149378, 2167440, 2302905, 2344776, 2456432, 2528680, 2930970, 3034416, 3070540, 3224067, 3349680, 3684648, 3793020, 3907960, 4298756, 4605810, 4689552, 5057360, 5373445, 5861940, 6141080, 6448134, 7369296, 7586040, 7815920, 8597512, 9211620, 10746890, 11723880, 12282160, 12896268, 15172080, 16120335, 17195024, 18423240, 21493780, 23447760, 25792536, 32240670, 36846480, 42987560, 51585072, 64481340, 85975120, 128962680, 257925360]

約数ペア:

[(1, 257925360), (2, 128962680), (3, 85975120), (4, 64481340), (5, 51585072), (6, 42987560), (7, 36846480), (8, 32240670), (10, 25792536), (11, 23447760), (12, 21493780), (14, 18423240), (15, 17195024), (16, 16120335), (17, 15172080), (20, 12896268), (21, 12282160), (22, 11723880), (24, 10746890), (28, 9211620), (30, 8597512), (33, 7815920), (34, 7586040), (35, 7369296), (40, 6448134), (42, 6141080), (44, 5861940), (48, 5373445), (51, 5057360), (55, 4689552), (56, 4605810), (60, 4298756), (66, 3907960), (68, 3793020), (70, 3684648), (77, 3349680), (80, 3224067), (84, 3070540), (85, 3034416), (88, 2930970), (102, 2528680), (105, 2456432), (110, 2344776), (112, 2302905), (119, 2167440), (120, 2149378), (132, 1953980), (136, 1896510), (140, 1842324), (154, 1674840), (165, 1563184), (168, 1535270), (170, 1517208), (176, 1465485), (187, 1379280), (204, 1264340), (210, 1228216), (220, 1172388), (231, 1116560), (238, 1083720), (240, 1074689), (255, 1011472), (264, 976990), (272, 948255), (280, 921162), (308, 837420), (330, 781592), (336, 767635), (340, 758604), (357, 722480), (374, 689640), (385, 669936), (408, 632170), (420, 614108), (440, 586194), (462, 558280), (476, 541860), (510, 505736), (528, 488495), (560, 460581), (561, 459760), (595, 433488), (616, 418710), (660, 390796), (680, 379302), (714, 361240), (748, 344820), (770, 334968), (816, 316085), (821, 314160), (840, 307054), (880, 293097), (924, 279140), (935, 275856), (952, 270930), (1020, 252868), (1122, 229880), (1155, 223312), (1190, 216744), (1232, 209355), (1309, 197040), (1320, 195398), (1360, 189651), (1428, 180620), (1496, 172410), (1540, 167484), (1642, 157080), (1680, 153527), (1785, 144496), (1848, 139570), (1870, 137928), (1904, 135465), (2040, 126434), (2244, 114940), (2310, 111656), (2380, 108372), (2463, 104720), (2618, 98520), (2640, 97699), (2805, 91952), (2856, 90310), (2992, 86205), (3080, 83742), (3284, 78540), (3570, 72248), (3696, 69785), (3740, 68964), (3927, 65680), (4080, 63217), (4105, 62832), (4488, 57470), (4620, 55828), (4760, 54186), (4926, 52360), (5236, 49260), (5610, 45976), (5712, 45155), (5747, 44880), (6160, 41871), (6545, 39408), (6568, 39270), (7140, 36124), (7480, 34482), (7854, 32840), (8210, 31416), (8976, 28735), (9031, 28560), (9240, 27914), (9520, 27093), (9852, 26180), (10472, 24630), (11220, 22988), (11494, 22440), (12315, 20944), (13090, 19704), (13136, 19635), (13957, 18480), (14280, 18062), (14960, 17241), (15708, 16420)]