20407808

素因数分解:

$2^9\times {\mathrm{23}}^1\times {\mathrm{1733}}^1$

素因数の和:1774

約数の個数: 40

約数和(自身を含む): 42573168

約数和(自身を除く): 22165360

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 128, 184, 256, 368, 512, 736, 1472, 1733, 2944, 3466, 5888, 6932, 11776, 13864, 27728, 39859, 55456, 79718, 110912, 159436, 221824, 318872, 443648, 637744, 887296, 1275488, 2550976, 5101952, 10203904, 20407808]

約数ペア:

[(1, 20407808), (2, 10203904), (4, 5101952), (8, 2550976), (16, 1275488), (23, 887296), (32, 637744), (46, 443648), (64, 318872), (92, 221824), (128, 159436), (184, 110912), (256, 79718), (368, 55456), (512, 39859), (736, 27728), (1472, 13864), (1733, 11776), (2944, 6932), (3466, 5888)]