8742020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1523}}^1$

素因数の和:1580

約数の個数: 48

約数和(自身を含む): 21506688

約数和(自身を除く): 12764668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 574, 820, 1148, 1435, 1523, 2870, 3046, 5740, 6092, 7615, 10661, 15230, 21322, 30460, 42644, 53305, 62443, 106610, 124886, 213220, 249772, 312215, 437101, 624430, 874202, 1248860, 1748404, 2185505, 4371010, 8742020]

約数ペア:

[(1, 8742020), (2, 4371010), (4, 2185505), (5, 1748404), (7, 1248860), (10, 874202), (14, 624430), (20, 437101), (28, 312215), (35, 249772), (41, 213220), (70, 124886), (82, 106610), (140, 62443), (164, 53305), (205, 42644), (287, 30460), (410, 21322), (574, 15230), (820, 10661), (1148, 7615), (1435, 6092), (1523, 5740), (2870, 3046)]