285878280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:180

約数の個数: 192

約数和(自身を含む): 923728320

約数和(自身を除く): 637850040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 37, 40, 60, 62, 67, 74, 93, 111, 120, 124, 134, 148, 155, 185, 186, 201, 222, 248, 268, 296, 310, 335, 370, 372, 402, 444, 465, 536, 555, 620, 670, 740, 744, 804, 888, 930, 961, 1005, 1110, 1147, 1240, 1340, 1480, 1608, 1860, 1922, 2010, 2077, 2220, 2294, 2479, 2680, 2883, 3441, 3720, 3844, 4020, 4154, 4440, 4588, 4805, 4958, 5735, 5766, 6231, 6882, 7437, 7688, 8040, 8308, 9176, 9610, 9916, 10385, 11470, 11532, 12395, 12462, 13764, 14415, 14874, 16616, 17205, 19220, 19832, 20770, 22940, 23064, 24790, 24924, 27528, 28830, 29748, 31155, 34410, 35557, 37185, 38440, 41540, 45880, 49580, 49848, 57660, 59496, 62310, 64387, 68820, 71114, 74370, 76849, 83080, 99160, 106671, 115320, 124620, 128774, 137640, 142228, 148740, 153698, 177785, 193161, 213342, 230547, 249240, 257548, 284456, 297480, 307396, 321935, 355570, 384245, 386322, 426684, 461094, 515096, 533355, 614792, 643870, 711140, 768490, 772644, 853368, 922188, 965805, 1066710, 1152735, 1287740, 1422280, 1536980, 1545288, 1844376, 1931610, 2133420, 2305470, 2382319, 2575480, 3073960, 3863220, 4266840, 4610940, 4764638, 7146957, 7726440, 9221880, 9529276, 11911595, 14293914, 19058552, 23823190, 28587828, 35734785, 47646380, 57175656, 71469570, 95292760, 142939140, 285878280]

約数ペア:

[(1, 285878280), (2, 142939140), (3, 95292760), (4, 71469570), (5, 57175656), (6, 47646380), (8, 35734785), (10, 28587828), (12, 23823190), (15, 19058552), (20, 14293914), (24, 11911595), (30, 9529276), (31, 9221880), (37, 7726440), (40, 7146957), (60, 4764638), (62, 4610940), (67, 4266840), (74, 3863220), (93, 3073960), (111, 2575480), (120, 2382319), (124, 2305470), (134, 2133420), (148, 1931610), (155, 1844376), (185, 1545288), (186, 1536980), (201, 1422280), (222, 1287740), (248, 1152735), (268, 1066710), (296, 965805), (310, 922188), (335, 853368), (370, 772644), (372, 768490), (402, 711140), (444, 643870), (465, 614792), (536, 533355), (555, 515096), (620, 461094), (670, 426684), (740, 386322), (744, 384245), (804, 355570), (888, 321935), (930, 307396), (961, 297480), (1005, 284456), (1110, 257548), (1147, 249240), (1240, 230547), (1340, 213342), (1480, 193161), (1608, 177785), (1860, 153698), (1922, 148740), (2010, 142228), (2077, 137640), (2220, 128774), (2294, 124620), (2479, 115320), (2680, 106671), (2883, 99160), (3441, 83080), (3720, 76849), (3844, 74370), (4020, 71114), (4154, 68820), (4440, 64387), (4588, 62310), (4805, 59496), (4958, 57660), (5735, 49848), (5766, 49580), (6231, 45880), (6882, 41540), (7437, 38440), (7688, 37185), (8040, 35557), (8308, 34410), (9176, 31155), (9610, 29748), (9916, 28830), (10385, 27528), (11470, 24924), (11532, 24790), (12395, 23064), (12462, 22940), (13764, 20770), (14415, 19832), (14874, 19220), (16616, 17205)]