281438640

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2939}}^1$

素因数の和:2984

約数の個数: 240

約数和(自身を含む): 1137427200

約数和(自身を除く): 855988560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 19, 20, 21, 24, 28, 30, 35, 36, 38, 40, 42, 45, 48, 56, 57, 60, 63, 70, 72, 76, 80, 84, 90, 95, 105, 112, 114, 120, 126, 133, 140, 144, 152, 168, 171, 180, 190, 210, 228, 240, 252, 266, 280, 285, 304, 315, 336, 342, 360, 380, 399, 420, 456, 504, 532, 560, 570, 630, 665, 684, 720, 760, 798, 840, 855, 912, 1008, 1064, 1140, 1197, 1260, 1330, 1368, 1520, 1596, 1680, 1710, 1995, 2128, 2280, 2394, 2520, 2660, 2736, 2939, 3192, 3420, 3990, 4560, 4788, 5040, 5320, 5878, 5985, 6384, 6840, 7980, 8817, 9576, 10640, 11756, 11970, 13680, 14695, 15960, 17634, 19152, 20573, 23512, 23940, 26451, 29390, 31920, 35268, 41146, 44085, 47024, 47880, 52902, 55841, 58780, 61719, 70536, 82292, 88170, 95760, 102865, 105804, 111682, 117560, 123438, 132255, 141072, 164584, 167523, 176340, 185157, 205730, 211608, 223364, 235120, 246876, 264510, 279205, 308595, 329168, 335046, 352680, 370314, 390887, 411460, 423216, 446728, 493752, 502569, 529020, 558410, 617190, 670092, 705360, 740628, 781774, 822920, 837615, 893456, 925785, 987504, 1005138, 1058040, 1116820, 1172661, 1234380, 1340184, 1481256, 1563548, 1645840, 1675230, 1851570, 1954435, 2010276, 2116080, 2233640, 2345322, 2468760, 2512845, 2680368, 2962512, 3127096, 3350460, 3517983, 3703140, 3908870, 4020552, 4467280, 4690644, 4937520, 5025690, 5863305, 6254192, 6700920, 7035966, 7406280, 7817740, 8041104, 9381288, 10051380, 11726610, 13401840, 14071932, 14812560, 15635480, 17589915, 18762576, 20102760, 23453220, 28143864, 31270960, 35179830, 40205520, 46906440, 56287728, 70359660, 93812880, 140719320, 281438640]

約数ペア:

[(1, 281438640), (2, 140719320), (3, 93812880), (4, 70359660), (5, 56287728), (6, 46906440), (7, 40205520), (8, 35179830), (9, 31270960), (10, 28143864), (12, 23453220), (14, 20102760), (15, 18762576), (16, 17589915), (18, 15635480), (19, 14812560), (20, 14071932), (21, 13401840), (24, 11726610), (28, 10051380), (30, 9381288), (35, 8041104), (36, 7817740), (38, 7406280), (40, 7035966), (42, 6700920), (45, 6254192), (48, 5863305), (56, 5025690), (57, 4937520), (60, 4690644), (63, 4467280), (70, 4020552), (72, 3908870), (76, 3703140), (80, 3517983), (84, 3350460), (90, 3127096), (95, 2962512), (105, 2680368), (112, 2512845), (114, 2468760), (120, 2345322), (126, 2233640), (133, 2116080), (140, 2010276), (144, 1954435), (152, 1851570), (168, 1675230), (171, 1645840), (180, 1563548), (190, 1481256), (210, 1340184), (228, 1234380), (240, 1172661), (252, 1116820), (266, 1058040), (280, 1005138), (285, 987504), (304, 925785), (315, 893456), (336, 837615), (342, 822920), (360, 781774), (380, 740628), (399, 705360), (420, 670092), (456, 617190), (504, 558410), (532, 529020), (560, 502569), (570, 493752), (630, 446728), (665, 423216), (684, 411460), (720, 390887), (760, 370314), (798, 352680), (840, 335046), (855, 329168), (912, 308595), (1008, 279205), (1064, 264510), (1140, 246876), (1197, 235120), (1260, 223364), (1330, 211608), (1368, 205730), (1520, 185157), (1596, 176340), (1680, 167523), (1710, 164584), (1995, 141072), (2128, 132255), (2280, 123438), (2394, 117560), (2520, 111682), (2660, 105804), (2736, 102865), (2939, 95760), (3192, 88170), (3420, 82292), (3990, 70536), (4560, 61719), (4788, 58780), (5040, 55841), (5320, 52902), (5878, 47880), (5985, 47024), (6384, 44085), (6840, 41146), (7980, 35268), (8817, 31920), (9576, 29390), (10640, 26451), (11756, 23940), (11970, 23512), (13680, 20573), (14695, 19152), (15960, 17634)]