19744816

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:290

約数の個数: 80

約数和(自身を含む): 47996928

約数和(自身を除く): 28252112

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 71, 91, 104, 112, 142, 182, 191, 208, 284, 364, 382, 497, 568, 728, 764, 923, 994, 1136, 1337, 1456, 1528, 1846, 1988, 2483, 2674, 3056, 3692, 3976, 4966, 5348, 6461, 7384, 7952, 9932, 10696, 12922, 13561, 14768, 17381, 19864, 21392, 25844, 27122, 34762, 39728, 51688, 54244, 69524, 94927, 103376, 108488, 139048, 176293, 189854, 216976, 278096, 352586, 379708, 705172, 759416, 1234051, 1410344, 1518832, 2468102, 2820688, 4936204, 9872408, 19744816]

約数ペア:

[(1, 19744816), (2, 9872408), (4, 4936204), (7, 2820688), (8, 2468102), (13, 1518832), (14, 1410344), (16, 1234051), (26, 759416), (28, 705172), (52, 379708), (56, 352586), (71, 278096), (91, 216976), (104, 189854), (112, 176293), (142, 139048), (182, 108488), (191, 103376), (208, 94927), (284, 69524), (364, 54244), (382, 51688), (497, 39728), (568, 34762), (728, 27122), (764, 25844), (923, 21392), (994, 19864), (1136, 17381), (1337, 14768), (1456, 13561), (1528, 12922), (1846, 10696), (1988, 9932), (2483, 7952), (2674, 7384), (3056, 6461), (3692, 5348), (3976, 4966)]