871780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{479}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 2257920

約数和(自身を除く): 1386140

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 479, 910, 958, 1820, 1916, 2395, 3353, 4790, 6227, 6706, 9580, 12454, 13412, 16765, 24908, 31135, 33530, 43589, 62270, 67060, 87178, 124540, 174356, 217945, 435890, 871780]

約数ペア:

[(1, 871780), (2, 435890), (4, 217945), (5, 174356), (7, 124540), (10, 87178), (13, 67060), (14, 62270), (20, 43589), (26, 33530), (28, 31135), (35, 24908), (52, 16765), (65, 13412), (70, 12454), (91, 9580), (130, 6706), (140, 6227), (182, 4790), (260, 3353), (364, 2395), (455, 1916), (479, 1820), (910, 958)]