78807040

素因数分解:

$2^{15}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1$

素因数の和:85

約数の個数: 128

約数和(自身を含む): 209187720

約数和(自身を除く): 130380680

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 37, 40, 52, 64, 65, 74, 80, 104, 128, 130, 148, 160, 185, 208, 256, 260, 296, 320, 370, 416, 481, 512, 520, 592, 640, 740, 832, 962, 1024, 1040, 1184, 1280, 1480, 1664, 1924, 2048, 2080, 2368, 2405, 2560, 2960, 3328, 3848, 4096, 4160, 4736, 4810, 5120, 5920, 6656, 7696, 8192, 8320, 9472, 9620, 10240, 11840, 13312, 15392, 16384, 16640, 18944, 19240, 20480, 23680, 26624, 30784, 32768, 33280, 37888, 38480, 40960, 47360, 53248, 61568, 66560, 75776, 76960, 81920, 94720, 106496, 123136, 133120, 151552, 153920, 163840, 189440, 212992, 246272, 266240, 303104, 307840, 378880, 425984, 492544, 532480, 606208, 615680, 757760, 985088, 1064960, 1212416, 1231360, 1515520, 1970176, 2129920, 2462720, 3031040, 3940352, 4925440, 6062080, 7880704, 9850880, 15761408, 19701760, 39403520, 78807040]

約数ペア:

[(1, 78807040), (2, 39403520), (4, 19701760), (5, 15761408), (8, 9850880), (10, 7880704), (13, 6062080), (16, 4925440), (20, 3940352), (26, 3031040), (32, 2462720), (37, 2129920), (40, 1970176), (52, 1515520), (64, 1231360), (65, 1212416), (74, 1064960), (80, 985088), (104, 757760), (128, 615680), (130, 606208), (148, 532480), (160, 492544), (185, 425984), (208, 378880), (256, 307840), (260, 303104), (296, 266240), (320, 246272), (370, 212992), (416, 189440), (481, 163840), (512, 153920), (520, 151552), (592, 133120), (640, 123136), (740, 106496), (832, 94720), (962, 81920), (1024, 76960), (1040, 75776), (1184, 66560), (1280, 61568), (1480, 53248), (1664, 47360), (1924, 40960), (2048, 38480), (2080, 37888), (2368, 33280), (2405, 32768), (2560, 30784), (2960, 26624), (3328, 23680), (3848, 20480), (4096, 19240), (4160, 18944), (4736, 16640), (4810, 16384), (5120, 15392), (5920, 13312), (6656, 11840), (7696, 10240), (8192, 9620), (8320, 9472)]