1211140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 2991744

約数和(自身を除く): 1780604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 211, 287, 410, 422, 574, 820, 844, 1055, 1148, 1435, 1477, 2110, 2870, 2954, 4220, 5740, 5908, 7385, 8651, 14770, 17302, 29540, 34604, 43255, 60557, 86510, 121114, 173020, 242228, 302785, 605570, 1211140]

約数ペア:

[(1, 1211140), (2, 605570), (4, 302785), (5, 242228), (7, 173020), (10, 121114), (14, 86510), (20, 60557), (28, 43255), (35, 34604), (41, 29540), (70, 17302), (82, 14770), (140, 8651), (164, 7385), (205, 5908), (211, 5740), (287, 4220), (410, 2954), (422, 2870), (574, 2110), (820, 1477), (844, 1435), (1055, 1148)]