257605040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:152

約数の個数: 320

約数和(自身を含む): 822804480

約数和(自身を除く): 565199440

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 19, 20, 22, 28, 31, 35, 38, 40, 44, 55, 56, 62, 70, 71, 76, 77, 80, 88, 95, 110, 112, 124, 133, 140, 142, 152, 154, 155, 176, 190, 209, 217, 220, 248, 266, 280, 284, 304, 308, 310, 341, 355, 380, 385, 418, 434, 440, 496, 497, 532, 560, 568, 589, 616, 620, 665, 682, 710, 760, 770, 781, 836, 868, 880, 994, 1045, 1064, 1085, 1136, 1178, 1232, 1240, 1330, 1349, 1364, 1420, 1463, 1520, 1540, 1562, 1672, 1705, 1736, 1988, 2090, 2128, 2170, 2201, 2356, 2387, 2480, 2485, 2660, 2698, 2728, 2840, 2926, 2945, 3080, 3124, 3344, 3410, 3472, 3905, 3976, 4123, 4180, 4340, 4402, 4712, 4774, 4970, 5320, 5396, 5456, 5467, 5680, 5852, 5890, 6160, 6248, 6479, 6745, 6820, 7315, 7810, 7952, 8246, 8360, 8680, 8804, 9424, 9443, 9548, 9940, 10640, 10792, 10934, 11005, 11704, 11780, 11935, 12496, 12958, 13490, 13640, 14630, 14839, 15407, 15620, 16492, 16720, 17360, 17608, 18886, 19096, 19880, 20615, 21584, 21868, 22010, 23408, 23560, 23870, 24211, 25916, 26980, 27280, 27335, 29260, 29678, 30814, 31240, 32395, 32984, 35216, 37772, 38192, 39760, 41230, 41819, 43736, 44020, 45353, 47120, 47215, 47740, 48422, 51832, 53960, 54670, 58520, 59356, 61628, 62480, 64790, 65968, 74195, 75544, 77035, 82460, 83638, 87472, 88040, 90706, 94430, 95480, 96844, 103664, 103873, 107920, 109340, 117040, 118712, 121055, 123256, 129580, 148390, 151088, 154070, 164920, 167276, 169477, 176080, 181412, 188860, 190960, 193688, 207746, 209095, 218680, 226765, 237424, 242110, 246512, 259160, 292733, 296780, 308140, 329840, 334552, 338954, 362824, 377720, 387376, 415492, 418190, 437360, 453530, 460009, 484220, 518320, 519365, 585466, 593560, 616280, 669104, 677908, 725648, 755440, 830984, 836380, 847385, 907060, 920018, 968440, 1038730, 1170932, 1187120, 1232560, 1355816, 1463665, 1661968, 1672760, 1694770, 1814120, 1840036, 1936880, 2077460, 2300045, 2341864, 2711632, 2927330, 3220063, 3345520, 3389540, 3628240, 3680072, 4154920, 4600090, 4683728, 5854660, 6440126, 6779080, 7360144, 8309840, 9200180, 11709320, 12880252, 13558160, 16100315, 18400360, 23418640, 25760504, 32200630, 36800720, 51521008, 64401260, 128802520, 257605040]

約数ペア:

[(1, 257605040), (2, 128802520), (4, 64401260), (5, 51521008), (7, 36800720), (8, 32200630), (10, 25760504), (11, 23418640), (14, 18400360), (16, 16100315), (19, 13558160), (20, 12880252), (22, 11709320), (28, 9200180), (31, 8309840), (35, 7360144), (38, 6779080), (40, 6440126), (44, 5854660), (55, 4683728), (56, 4600090), (62, 4154920), (70, 3680072), (71, 3628240), (76, 3389540), (77, 3345520), (80, 3220063), (88, 2927330), (95, 2711632), (110, 2341864), (112, 2300045), (124, 2077460), (133, 1936880), (140, 1840036), (142, 1814120), (152, 1694770), (154, 1672760), (155, 1661968), (176, 1463665), (190, 1355816), (209, 1232560), (217, 1187120), (220, 1170932), (248, 1038730), (266, 968440), (280, 920018), (284, 907060), (304, 847385), (308, 836380), (310, 830984), (341, 755440), (355, 725648), (380, 677908), (385, 669104), (418, 616280), (434, 593560), (440, 585466), (496, 519365), (497, 518320), (532, 484220), (560, 460009), (568, 453530), (589, 437360), (616, 418190), (620, 415492), (665, 387376), (682, 377720), (710, 362824), (760, 338954), (770, 334552), (781, 329840), (836, 308140), (868, 296780), (880, 292733), (994, 259160), (1045, 246512), (1064, 242110), (1085, 237424), (1136, 226765), (1178, 218680), (1232, 209095), (1240, 207746), (1330, 193688), (1349, 190960), (1364, 188860), (1420, 181412), (1463, 176080), (1520, 169477), (1540, 167276), (1562, 164920), (1672, 154070), (1705, 151088), (1736, 148390), (1988, 129580), (2090, 123256), (2128, 121055), (2170, 118712), (2201, 117040), (2356, 109340), (2387, 107920), (2480, 103873), (2485, 103664), (2660, 96844), (2698, 95480), (2728, 94430), (2840, 90706), (2926, 88040), (2945, 87472), (3080, 83638), (3124, 82460), (3344, 77035), (3410, 75544), (3472, 74195), (3905, 65968), (3976, 64790), (4123, 62480), (4180, 61628), (4340, 59356), (4402, 58520), (4712, 54670), (4774, 53960), (4970, 51832), (5320, 48422), (5396, 47740), (5456, 47215), (5467, 47120), (5680, 45353), (5852, 44020), (5890, 43736), (6160, 41819), (6248, 41230), (6479, 39760), (6745, 38192), (6820, 37772), (7315, 35216), (7810, 32984), (7952, 32395), (8246, 31240), (8360, 30814), (8680, 29678), (8804, 29260), (9424, 27335), (9443, 27280), (9548, 26980), (9940, 25916), (10640, 24211), (10792, 23870), (10934, 23560), (11005, 23408), (11704, 22010), (11780, 21868), (11935, 21584), (12496, 20615), (12958, 19880), (13490, 19096), (13640, 18886), (14630, 17608), (14839, 17360), (15407, 16720), (15620, 16492)]