247766680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{884881}}^1$

素因数の和:884899

約数の個数: 32

約数和(自身を含む): 637115040

約数和(自身を除く): 389348360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 884881, 1769762, 3539524, 4424405, 6194167, 7079048, 8848810, 12388334, 17697620, 24776668, 30970835, 35395240, 49553336, 61941670, 123883340, 247766680]

約数ペア:

[(1, 247766680), (2, 123883340), (4, 61941670), (5, 49553336), (7, 35395240), (8, 30970835), (10, 24776668), (14, 17697620), (20, 12388334), (28, 8848810), (35, 7079048), (40, 6194167), (56, 4424405), (70, 3539524), (140, 1769762), (280, 884881)]