20197520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{36067}}^1$

素因数の和:36087

約数の個数: 40

約数和(自身を含む): 53669184

約数和(自身を除く): 33471664

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 36067, 72134, 144268, 180335, 252469, 288536, 360670, 504938, 577072, 721340, 1009876, 1262345, 1442680, 2019752, 2524690, 2885360, 4039504, 5049380, 10098760, 20197520]

約数ペア:

[(1, 20197520), (2, 10098760), (4, 5049380), (5, 4039504), (7, 2885360), (8, 2524690), (10, 2019752), (14, 1442680), (16, 1262345), (20, 1009876), (28, 721340), (35, 577072), (40, 504938), (56, 360670), (70, 288536), (80, 252469), (112, 180335), (140, 144268), (280, 72134), (560, 36067)]