20178390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{10039}}^1$

素因数の和:10116

約数の個数: 32

約数和(自身を含む): 49155840

約数和(自身を除く): 28977450

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 67, 134, 201, 335, 402, 670, 1005, 2010, 10039, 20078, 30117, 50195, 60234, 100390, 150585, 301170, 672613, 1345226, 2017839, 3363065, 4035678, 6726130, 10089195, 20178390]

約数ペア:

[(1, 20178390), (2, 10089195), (3, 6726130), (5, 4035678), (6, 3363065), (10, 2017839), (15, 1345226), (30, 672613), (67, 301170), (134, 150585), (201, 100390), (335, 60234), (402, 50195), (670, 30117), (1005, 20078), (2010, 10039)]