261829120

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{769}}^1$

素因数の和:818

約数の個数: 160

約数和(自身を含む): 756201600

約数和(自身を除く): 494372480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 64, 70, 76, 80, 95, 112, 128, 133, 140, 152, 160, 190, 224, 256, 266, 280, 304, 320, 380, 448, 512, 532, 560, 608, 640, 665, 760, 769, 896, 1064, 1120, 1216, 1280, 1330, 1520, 1538, 1792, 2128, 2240, 2432, 2560, 2660, 3040, 3076, 3584, 3845, 4256, 4480, 4864, 5320, 5383, 6080, 6152, 7690, 8512, 8960, 9728, 10640, 10766, 12160, 12304, 14611, 15380, 17024, 17920, 21280, 21532, 24320, 24608, 26915, 29222, 30760, 34048, 42560, 43064, 48640, 49216, 53830, 58444, 61520, 68096, 73055, 85120, 86128, 98432, 102277, 107660, 116888, 123040, 146110, 170240, 172256, 196864, 204554, 215320, 233776, 246080, 292220, 340480, 344512, 393728, 409108, 430640, 467552, 492160, 511385, 584440, 689024, 818216, 861280, 935104, 984320, 1022770, 1168880, 1378048, 1636432, 1722560, 1870208, 1968640, 2045540, 2337760, 2756096, 3272864, 3445120, 3740416, 4091080, 4675520, 6545728, 6890240, 7480832, 8182160, 9351040, 13091456, 13780480, 16364320, 18702080, 26182912, 32728640, 37404160, 52365824, 65457280, 130914560, 261829120]

約数ペア:

[(1, 261829120), (2, 130914560), (4, 65457280), (5, 52365824), (7, 37404160), (8, 32728640), (10, 26182912), (14, 18702080), (16, 16364320), (19, 13780480), (20, 13091456), (28, 9351040), (32, 8182160), (35, 7480832), (38, 6890240), (40, 6545728), (56, 4675520), (64, 4091080), (70, 3740416), (76, 3445120), (80, 3272864), (95, 2756096), (112, 2337760), (128, 2045540), (133, 1968640), (140, 1870208), (152, 1722560), (160, 1636432), (190, 1378048), (224, 1168880), (256, 1022770), (266, 984320), (280, 935104), (304, 861280), (320, 818216), (380, 689024), (448, 584440), (512, 511385), (532, 492160), (560, 467552), (608, 430640), (640, 409108), (665, 393728), (760, 344512), (769, 340480), (896, 292220), (1064, 246080), (1120, 233776), (1216, 215320), (1280, 204554), (1330, 196864), (1520, 172256), (1538, 170240), (1792, 146110), (2128, 123040), (2240, 116888), (2432, 107660), (2560, 102277), (2660, 98432), (3040, 86128), (3076, 85120), (3584, 73055), (3845, 68096), (4256, 61520), (4480, 58444), (4864, 53830), (5320, 49216), (5383, 48640), (6080, 43064), (6152, 42560), (7690, 34048), (8512, 30760), (8960, 29222), (9728, 26915), (10640, 24608), (10766, 24320), (12160, 21532), (12304, 21280), (14611, 17920), (15380, 17024)]