80903720

素因数分解:

$2^3\times 5^1\times {\mathrm{971}}^1\times {\mathrm{2083}}^1$

素因数の和:3065

約数の個数: 32

約数和(自身を含む): 182308320

約数和(自身を除く): 101404600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 971, 1942, 2083, 3884, 4166, 4855, 7768, 8332, 9710, 10415, 16664, 19420, 20830, 38840, 41660, 83320, 2022593, 4045186, 8090372, 10112965, 16180744, 20225930, 40451860, 80903720]

約数ペア:

[(1, 80903720), (2, 40451860), (4, 20225930), (5, 16180744), (8, 10112965), (10, 8090372), (20, 4045186), (40, 2022593), (971, 83320), (1942, 41660), (2083, 38840), (3884, 20830), (4166, 19420), (4855, 16664), (7768, 10415), (8332, 9710)]