19944752

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{181}}^1$

素因数の和:357

約数の個数: 40

約数和(自身を含む): 39809952

約数和(自身を除く): 19865200

約数列:

[1, 2, 4, 8, 16, 71, 97, 142, 181, 194, 284, 362, 388, 568, 724, 776, 1136, 1448, 1552, 2896, 6887, 12851, 13774, 17557, 25702, 27548, 35114, 51404, 55096, 70228, 102808, 110192, 140456, 205616, 280912, 1246547, 2493094, 4986188, 9972376, 19944752]

約数ペア:

[(1, 19944752), (2, 9972376), (4, 4986188), (8, 2493094), (16, 1246547), (71, 280912), (97, 205616), (142, 140456), (181, 110192), (194, 102808), (284, 70228), (362, 55096), (388, 51404), (568, 35114), (724, 27548), (776, 25702), (1136, 17557), (1448, 13774), (1552, 12851), (2896, 6887)]