31150420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{2203}}^1$

素因数の和:2320

約数の個数: 48

約数和(自身を含む): 75535488

約数和(自身を除く): 44385068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 140, 202, 404, 505, 707, 1010, 1414, 2020, 2203, 2828, 3535, 4406, 7070, 8812, 11015, 14140, 15421, 22030, 30842, 44060, 61684, 77105, 154210, 222503, 308420, 445006, 890012, 1112515, 1557521, 2225030, 3115042, 4450060, 6230084, 7787605, 15575210, 31150420]

約数ペア:

[(1, 31150420), (2, 15575210), (4, 7787605), (5, 6230084), (7, 4450060), (10, 3115042), (14, 2225030), (20, 1557521), (28, 1112515), (35, 890012), (70, 445006), (101, 308420), (140, 222503), (202, 154210), (404, 77105), (505, 61684), (707, 44060), (1010, 30842), (1414, 22030), (2020, 15421), (2203, 14140), (2828, 11015), (3535, 8812), (4406, 7070)]