31139990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{617}}^1$

素因数の和:741

約数の個数: 48

約数和(自身を含む): 65943072

約数和(自身を除く): 34803082

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 103, 206, 245, 490, 515, 617, 721, 1030, 1234, 1442, 3085, 3605, 4319, 5047, 6170, 7210, 8638, 10094, 21595, 25235, 30233, 43190, 50470, 60466, 63551, 127102, 151165, 302330, 317755, 444857, 635510, 889714, 2224285, 3113999, 4448570, 6227998, 15569995, 31139990]

約数ペア:

[(1, 31139990), (2, 15569995), (5, 6227998), (7, 4448570), (10, 3113999), (14, 2224285), (35, 889714), (49, 635510), (70, 444857), (98, 317755), (103, 302330), (206, 151165), (245, 127102), (490, 63551), (515, 60466), (617, 50470), (721, 43190), (1030, 30233), (1234, 25235), (1442, 21595), (3085, 10094), (3605, 8638), (4319, 7210), (5047, 6170)]