80829440

素因数分解:

$2^{10}\times 5^1\times {\mathrm{15787}}^1$

素因数の和:15812

約数の個数: 44

約数和(自身を含む): 193908216

約数和(自身を除く): 113078776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 15787, 31574, 63148, 78935, 126296, 157870, 252592, 315740, 505184, 631480, 1010368, 1262960, 2020736, 2525920, 4041472, 5051840, 8082944, 10103680, 16165888, 20207360, 40414720, 80829440]

約数ペア:

[(1, 80829440), (2, 40414720), (4, 20207360), (5, 16165888), (8, 10103680), (10, 8082944), (16, 5051840), (20, 4041472), (32, 2525920), (40, 2020736), (64, 1262960), (80, 1010368), (128, 631480), (160, 505184), (256, 315740), (320, 252592), (512, 157870), (640, 126296), (1024, 78935), (1280, 63148), (2560, 31574), (5120, 15787)]