77784140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{5501}}^1$

素因数の和:5618

約数の個数: 48

約数和(自身を含む): 188564544

約数和(自身を除く): 110780404

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 140, 202, 404, 505, 707, 1010, 1414, 2020, 2828, 3535, 5501, 7070, 11002, 14140, 22004, 27505, 38507, 55010, 77014, 110020, 154028, 192535, 385070, 555601, 770140, 1111202, 2222404, 2778005, 3889207, 5556010, 7778414, 11112020, 15556828, 19446035, 38892070, 77784140]

約数ペア:

[(1, 77784140), (2, 38892070), (4, 19446035), (5, 15556828), (7, 11112020), (10, 7778414), (14, 5556010), (20, 3889207), (28, 2778005), (35, 2222404), (70, 1111202), (101, 770140), (140, 555601), (202, 385070), (404, 192535), (505, 154028), (707, 110020), (1010, 77014), (1414, 55010), (2020, 38507), (2828, 27505), (3535, 22004), (5501, 14140), (7070, 11002)]