278384960

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1$

素因数の和:285

約数の個数: 224

約数和(自身を含む): 827105280

約数和(自身を除く): 548720320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 31, 32, 35, 38, 40, 56, 62, 64, 70, 76, 80, 95, 112, 124, 133, 140, 152, 155, 160, 190, 211, 217, 224, 248, 266, 280, 304, 310, 320, 380, 422, 434, 448, 496, 532, 560, 589, 608, 620, 665, 760, 844, 868, 992, 1055, 1064, 1085, 1120, 1178, 1216, 1240, 1330, 1477, 1520, 1688, 1736, 1984, 2110, 2128, 2170, 2240, 2356, 2480, 2660, 2945, 2954, 3040, 3376, 3472, 4009, 4123, 4220, 4256, 4340, 4712, 4960, 5320, 5890, 5908, 6080, 6541, 6752, 6944, 7385, 8018, 8246, 8440, 8512, 8680, 9424, 9920, 10640, 11780, 11816, 13082, 13504, 13888, 14770, 16036, 16492, 16880, 17360, 18848, 20045, 20615, 21280, 23560, 23632, 26164, 28063, 29540, 32072, 32705, 32984, 33760, 34720, 37696, 40090, 41230, 42560, 45787, 47120, 47264, 52328, 56126, 59080, 64144, 65410, 65968, 67520, 69440, 80180, 82460, 91574, 94240, 94528, 104656, 112252, 118160, 124279, 128288, 130820, 131936, 140315, 160360, 164920, 183148, 188480, 209312, 224504, 228935, 236320, 248558, 256576, 261640, 263872, 280630, 320720, 329840, 366296, 418624, 449008, 457870, 472640, 497116, 523280, 561260, 621395, 641440, 659680, 732592, 869953, 898016, 915740, 994232, 1046560, 1122520, 1242790, 1282880, 1319360, 1465184, 1739906, 1796032, 1831480, 1988464, 2093120, 2245040, 2485580, 2930368, 3479812, 3662960, 3976928, 4349765, 4490080, 4971160, 6959624, 7325920, 7953856, 8699530, 8980160, 9942320, 13919248, 14651840, 17399060, 19884640, 27838496, 34798120, 39769280, 55676992, 69596240, 139192480, 278384960]

約数ペア:

[(1, 278384960), (2, 139192480), (4, 69596240), (5, 55676992), (7, 39769280), (8, 34798120), (10, 27838496), (14, 19884640), (16, 17399060), (19, 14651840), (20, 13919248), (28, 9942320), (31, 8980160), (32, 8699530), (35, 7953856), (38, 7325920), (40, 6959624), (56, 4971160), (62, 4490080), (64, 4349765), (70, 3976928), (76, 3662960), (80, 3479812), (95, 2930368), (112, 2485580), (124, 2245040), (133, 2093120), (140, 1988464), (152, 1831480), (155, 1796032), (160, 1739906), (190, 1465184), (211, 1319360), (217, 1282880), (224, 1242790), (248, 1122520), (266, 1046560), (280, 994232), (304, 915740), (310, 898016), (320, 869953), (380, 732592), (422, 659680), (434, 641440), (448, 621395), (496, 561260), (532, 523280), (560, 497116), (589, 472640), (608, 457870), (620, 449008), (665, 418624), (760, 366296), (844, 329840), (868, 320720), (992, 280630), (1055, 263872), (1064, 261640), (1085, 256576), (1120, 248558), (1178, 236320), (1216, 228935), (1240, 224504), (1330, 209312), (1477, 188480), (1520, 183148), (1688, 164920), (1736, 160360), (1984, 140315), (2110, 131936), (2128, 130820), (2170, 128288), (2240, 124279), (2356, 118160), (2480, 112252), (2660, 104656), (2945, 94528), (2954, 94240), (3040, 91574), (3376, 82460), (3472, 80180), (4009, 69440), (4123, 67520), (4220, 65968), (4256, 65410), (4340, 64144), (4712, 59080), (4960, 56126), (5320, 52328), (5890, 47264), (5908, 47120), (6080, 45787), (6541, 42560), (6752, 41230), (6944, 40090), (7385, 37696), (8018, 34720), (8246, 33760), (8440, 32984), (8512, 32705), (8680, 32072), (9424, 29540), (9920, 28063), (10640, 26164), (11780, 23632), (11816, 23560), (13082, 21280), (13504, 20615), (13888, 20045), (14770, 18848), (16036, 17360), (16492, 16880)]