28378840

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{14479}}^1$

素因数の和:14504

約数の個数: 48

約数和(自身を含む): 74282400

約数和(自身を除く): 45903560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 14479, 28958, 57916, 72395, 101353, 115832, 144790, 202706, 289580, 405412, 506765, 579160, 709471, 810824, 1013530, 1418942, 2027060, 2837884, 3547355, 4054120, 5675768, 7094710, 14189420, 28378840]

約数ペア:

[(1, 28378840), (2, 14189420), (4, 7094710), (5, 5675768), (7, 4054120), (8, 3547355), (10, 2837884), (14, 2027060), (20, 1418942), (28, 1013530), (35, 810824), (40, 709471), (49, 579160), (56, 506765), (70, 405412), (98, 289580), (140, 202706), (196, 144790), (245, 115832), (280, 101353), (392, 72395), (490, 57916), (980, 28958), (1960, 14479)]