20404548

素因数分解:

$2^2\times 3^4\times {\mathrm{71}}^1\times {\mathrm{887}}^1$

素因数の和:974

約数の個数: 60

約数和(自身を含む): 54153792

約数和(自身を除く): 33749244

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 71, 81, 108, 142, 162, 213, 284, 324, 426, 639, 852, 887, 1278, 1774, 1917, 2556, 2661, 3548, 3834, 5322, 5751, 7668, 7983, 10644, 11502, 15966, 23004, 23949, 31932, 47898, 62977, 71847, 95796, 125954, 143694, 188931, 251908, 287388, 377862, 566793, 755724, 1133586, 1700379, 2267172, 3400758, 5101137, 6801516, 10202274, 20404548]

約数ペア:

[(1, 20404548), (2, 10202274), (3, 6801516), (4, 5101137), (6, 3400758), (9, 2267172), (12, 1700379), (18, 1133586), (27, 755724), (36, 566793), (54, 377862), (71, 287388), (81, 251908), (108, 188931), (142, 143694), (162, 125954), (213, 95796), (284, 71847), (324, 62977), (426, 47898), (639, 31932), (852, 23949), (887, 23004), (1278, 15966), (1774, 11502), (1917, 10644), (2556, 7983), (2661, 7668), (3548, 5751), (3834, 5322)]