19188978848

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{234149}}^1$

素因数の和:234369

約数の個数: 48

約数和(自身を含む): 40891019400

約数和(自身を除く): 21702040552

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 197, 208, 394, 416, 788, 1576, 2561, 3152, 5122, 6304, 10244, 20488, 40976, 81952, 234149, 468298, 936596, 1873192, 3043937, 3746384, 6087874, 7492768, 12175748, 24351496, 46127353, 48702992, 92254706, 97405984, 184509412, 369018824, 599655589, 738037648, 1199311178, 1476075296, 2398622356, 4797244712, 9594489424, 19188978848]

約数ペア:

[(1, 19188978848), (2, 9594489424), (4, 4797244712), (8, 2398622356), (13, 1476075296), (16, 1199311178), (26, 738037648), (32, 599655589), (52, 369018824), (104, 184509412), (197, 97405984), (208, 92254706), (394, 48702992), (416, 46127353), (788, 24351496), (1576, 12175748), (2561, 7492768), (3152, 6087874), (5122, 3746384), (6304, 3043937), (10244, 1873192), (20488, 936596), (40976, 468298), (81952, 234149)]