2028106640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{661}}^1\times {\mathrm{5479}}^1$

素因数の和:6160

約数の個数: 80

約数和(自身を含む): 5398106880

約数和(自身を除く): 3370000240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 661, 1322, 2644, 3305, 4627, 5288, 5479, 6610, 9254, 10576, 10958, 13220, 18508, 21916, 23135, 26440, 27395, 37016, 38353, 43832, 46270, 52880, 54790, 74032, 76706, 87664, 92540, 109580, 153412, 185080, 191765, 219160, 306824, 370160, 383530, 438320, 613648, 767060, 1534120, 3068240, 3621619, 7243238, 14486476, 18108095, 25351333, 28972952, 36216190, 50702666, 57945904, 72432380, 101405332, 126756665, 144864760, 202810664, 253513330, 289729520, 405621328, 507026660, 1014053320, 2028106640]

約数ペア:

[(1, 2028106640), (2, 1014053320), (4, 507026660), (5, 405621328), (7, 289729520), (8, 253513330), (10, 202810664), (14, 144864760), (16, 126756665), (20, 101405332), (28, 72432380), (35, 57945904), (40, 50702666), (56, 36216190), (70, 28972952), (80, 25351333), (112, 18108095), (140, 14486476), (280, 7243238), (560, 3621619), (661, 3068240), (1322, 1534120), (2644, 767060), (3305, 613648), (4627, 438320), (5288, 383530), (5479, 370160), (6610, 306824), (9254, 219160), (10576, 191765), (10958, 185080), (13220, 153412), (18508, 109580), (21916, 92540), (23135, 87664), (26440, 76706), (27395, 74032), (37016, 54790), (38353, 52880), (43832, 46270)]