2605960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:286

約数の個数: 64

約数和(自身を含む): 6894720

約数和(自身を除く): 4288760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 56, 70, 82, 140, 164, 205, 227, 280, 287, 328, 410, 454, 574, 820, 908, 1135, 1148, 1435, 1589, 1640, 1816, 2270, 2296, 2870, 3178, 4540, 5740, 6356, 7945, 9080, 9307, 11480, 12712, 15890, 18614, 31780, 37228, 46535, 63560, 65149, 74456, 93070, 130298, 186140, 260596, 325745, 372280, 521192, 651490, 1302980, 2605960]

約数ペア:

[(1, 2605960), (2, 1302980), (4, 651490), (5, 521192), (7, 372280), (8, 325745), (10, 260596), (14, 186140), (20, 130298), (28, 93070), (35, 74456), (40, 65149), (41, 63560), (56, 46535), (70, 37228), (82, 31780), (140, 18614), (164, 15890), (205, 12712), (227, 11480), (280, 9307), (287, 9080), (328, 7945), (410, 6356), (454, 5740), (574, 4540), (820, 3178), (908, 2870), (1135, 2296), (1148, 2270), (1435, 1816), (1589, 1640)]