20144260

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{11317}}^1$

素因数の和:11415

約数の個数: 24

約数和(自身を含む): 42782040

約数和(自身を除く): 22637780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 11317, 22634, 45268, 56585, 113170, 226340, 1007213, 2014426, 4028852, 5036065, 10072130, 20144260]

約数ペア:

[(1, 20144260), (2, 10072130), (4, 5036065), (5, 4028852), (10, 2014426), (20, 1007213), (89, 226340), (178, 113170), (356, 56585), (445, 45268), (890, 22634), (1780, 11317)]