51041720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{31123}}^1$

素因数の和:31175

約数の個数: 32

約数和(自身を含む): 117648720

約数和(自身を除く): 66607000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 31123, 62246, 124492, 155615, 248984, 311230, 622460, 1244920, 1276043, 2552086, 5104172, 6380215, 10208344, 12760430, 25520860, 51041720]

約数ペア:

[(1, 51041720), (2, 25520860), (4, 12760430), (5, 10208344), (8, 6380215), (10, 5104172), (20, 2552086), (40, 1276043), (41, 1244920), (82, 622460), (164, 311230), (205, 248984), (328, 155615), (410, 124492), (820, 62246), (1640, 31123)]