71667020

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{191}}^1\times {\mathrm{257}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 153957888

約数和(自身を除く): 82290868

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 191, 257, 292, 365, 382, 514, 730, 764, 955, 1028, 1285, 1460, 1910, 2570, 3820, 5140, 13943, 18761, 27886, 37522, 49087, 55772, 69715, 75044, 93805, 98174, 139430, 187610, 196348, 245435, 278860, 375220, 490870, 981740, 3583351, 7166702, 14333404, 17916755, 35833510, 71667020]

約数ペア:

[(1, 71667020), (2, 35833510), (4, 17916755), (5, 14333404), (10, 7166702), (20, 3583351), (73, 981740), (146, 490870), (191, 375220), (257, 278860), (292, 245435), (365, 196348), (382, 187610), (514, 139430), (730, 98174), (764, 93805), (955, 75044), (1028, 69715), (1285, 55772), (1460, 49087), (1910, 37522), (2570, 27886), (3820, 18761), (5140, 13943)]