20309440

素因数分解:

$2^6\times 5^1\times {\mathrm{63467}}^1$

素因数の和:63484

約数の個数: 28

約数和(自身を含む): 48362616

約数和(自身を除く): 28053176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 63467, 126934, 253868, 317335, 507736, 634670, 1015472, 1269340, 2030944, 2538680, 4061888, 5077360, 10154720, 20309440]

約数ペア:

[(1, 20309440), (2, 10154720), (4, 5077360), (5, 4061888), (8, 2538680), (10, 2030944), (16, 1269340), (20, 1015472), (32, 634670), (40, 507736), (64, 317335), (80, 253868), (160, 126934), (320, 63467)]