1277778880

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{4289}}^1$

素因数の和:4339

約数の個数: 168

約数和(自身を含む): 3726637200

約数和(自身を除く): 2448858320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 64, 70, 76, 80, 95, 98, 112, 133, 140, 152, 160, 190, 196, 224, 245, 266, 280, 304, 320, 380, 392, 448, 490, 532, 560, 608, 665, 760, 784, 931, 980, 1064, 1120, 1216, 1330, 1520, 1568, 1862, 1960, 2128, 2240, 2660, 3040, 3136, 3724, 3920, 4256, 4289, 4655, 5320, 6080, 7448, 7840, 8512, 8578, 9310, 10640, 14896, 15680, 17156, 18620, 21280, 21445, 29792, 30023, 34312, 37240, 42560, 42890, 59584, 60046, 68624, 74480, 81491, 85780, 120092, 137248, 148960, 150115, 162982, 171560, 210161, 240184, 274496, 297920, 300230, 325964, 343120, 407455, 420322, 480368, 570437, 600460, 651928, 686240, 814910, 840644, 960736, 1050805, 1140874, 1200920, 1303856, 1372480, 1629820, 1681288, 1921472, 2101610, 2281748, 2401840, 2607712, 2852185, 3259640, 3362576, 3993059, 4203220, 4563496, 4803680, 5215424, 5704370, 6519280, 6725152, 7986118, 8406440, 9126992, 9607360, 11408740, 13038560, 13450304, 15972236, 16812880, 18253984, 19965295, 22817480, 26077120, 31944472, 33625760, 36507968, 39930590, 45634960, 63888944, 67251520, 79861180, 91269920, 127777888, 159722360, 182539840, 255555776, 319444720, 638889440, 1277778880]

約数ペア:

[(1, 1277778880), (2, 638889440), (4, 319444720), (5, 255555776), (7, 182539840), (8, 159722360), (10, 127777888), (14, 91269920), (16, 79861180), (19, 67251520), (20, 63888944), (28, 45634960), (32, 39930590), (35, 36507968), (38, 33625760), (40, 31944472), (49, 26077120), (56, 22817480), (64, 19965295), (70, 18253984), (76, 16812880), (80, 15972236), (95, 13450304), (98, 13038560), (112, 11408740), (133, 9607360), (140, 9126992), (152, 8406440), (160, 7986118), (190, 6725152), (196, 6519280), (224, 5704370), (245, 5215424), (266, 4803680), (280, 4563496), (304, 4203220), (320, 3993059), (380, 3362576), (392, 3259640), (448, 2852185), (490, 2607712), (532, 2401840), (560, 2281748), (608, 2101610), (665, 1921472), (760, 1681288), (784, 1629820), (931, 1372480), (980, 1303856), (1064, 1200920), (1120, 1140874), (1216, 1050805), (1330, 960736), (1520, 840644), (1568, 814910), (1862, 686240), (1960, 651928), (2128, 600460), (2240, 570437), (2660, 480368), (3040, 420322), (3136, 407455), (3724, 343120), (3920, 325964), (4256, 300230), (4289, 297920), (4655, 274496), (5320, 240184), (6080, 210161), (7448, 171560), (7840, 162982), (8512, 150115), (8578, 148960), (9310, 137248), (10640, 120092), (14896, 85780), (15680, 81491), (17156, 74480), (18620, 68624), (21280, 60046), (21445, 59584), (29792, 42890), (30023, 42560), (34312, 37240)]