201721460

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^2\times {\mathrm{337}}^1$

素因数の和:692

約数の個数: 36

約数和(自身を含む): 427342188

約数和(自身を除く): 225620728

約数列:

[1, 2, 4, 5, 10, 20, 173, 337, 346, 674, 692, 865, 1348, 1685, 1730, 3370, 3460, 6740, 29929, 58301, 59858, 116602, 119716, 149645, 233204, 291505, 299290, 583010, 598580, 1166020, 10086073, 20172146, 40344292, 50430365, 100860730, 201721460]

約数ペア:

[(1, 201721460), (2, 100860730), (4, 50430365), (5, 40344292), (10, 20172146), (20, 10086073), (173, 1166020), (337, 598580), (346, 583010), (674, 299290), (692, 291505), (865, 233204), (1348, 149645), (1685, 119716), (1730, 116602), (3370, 59858), (3460, 58301), (6740, 29929)]