490840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1753}}^1$

素因数の和:1771

約数の個数: 32

約数和(自身を含む): 1262880

約数和(自身を除く): 772040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1753, 3506, 7012, 8765, 12271, 14024, 17530, 24542, 35060, 49084, 61355, 70120, 98168, 122710, 245420, 490840]

約数ペア:

[(1, 490840), (2, 245420), (4, 122710), (5, 98168), (7, 70120), (8, 61355), (10, 49084), (14, 35060), (20, 24542), (28, 17530), (35, 14024), (40, 12271), (56, 8765), (70, 7012), (140, 3506), (280, 1753)]