80887040

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4861}}^1$

素因数の和:4895

約数の個数: 72

約数和(自身を含む): 208696488

約数和(自身を除く): 127809448

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 4160, 4861, 8320, 9722, 16640, 19444, 24305, 38888, 48610, 63193, 77776, 97220, 126386, 155552, 194440, 252772, 311104, 315965, 388880, 505544, 622208, 631930, 777760, 1011088, 1244416, 1263860, 1555520, 2022176, 2527720, 3111040, 4044352, 5055440, 6222080, 8088704, 10110880, 16177408, 20221760, 40443520, 80887040]

約数ペア:

[(1, 80887040), (2, 40443520), (4, 20221760), (5, 16177408), (8, 10110880), (10, 8088704), (13, 6222080), (16, 5055440), (20, 4044352), (26, 3111040), (32, 2527720), (40, 2022176), (52, 1555520), (64, 1263860), (65, 1244416), (80, 1011088), (104, 777760), (128, 631930), (130, 622208), (160, 505544), (208, 388880), (256, 315965), (260, 311104), (320, 252772), (416, 194440), (520, 155552), (640, 126386), (832, 97220), (1040, 77776), (1280, 63193), (1664, 48610), (2080, 38888), (3328, 24305), (4160, 19444), (4861, 16640), (8320, 9722)]