71882020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{1789}}^1$

素因数の和:1853

約数の個数: 72

約数和(自身を含む): 179980920

約数和(自身を除く): 108098900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 410, 490, 574, 820, 980, 1148, 1435, 1789, 2009, 2870, 3578, 4018, 5740, 7156, 8036, 8945, 10045, 12523, 17890, 20090, 25046, 35780, 40180, 50092, 62615, 73349, 87661, 125230, 146698, 175322, 250460, 293396, 350644, 366745, 438305, 513443, 733490, 876610, 1026886, 1466980, 1753220, 2053772, 2567215, 3594101, 5134430, 7188202, 10268860, 14376404, 17970505, 35941010, 71882020]

約数ペア:

[(1, 71882020), (2, 35941010), (4, 17970505), (5, 14376404), (7, 10268860), (10, 7188202), (14, 5134430), (20, 3594101), (28, 2567215), (35, 2053772), (41, 1753220), (49, 1466980), (70, 1026886), (82, 876610), (98, 733490), (140, 513443), (164, 438305), (196, 366745), (205, 350644), (245, 293396), (287, 250460), (410, 175322), (490, 146698), (574, 125230), (820, 87661), (980, 73349), (1148, 62615), (1435, 50092), (1789, 40180), (2009, 35780), (2870, 25046), (3578, 20090), (4018, 17890), (5740, 12523), (7156, 10045), (8036, 8945)]