201928520

素因数分解:

$2^3\times 5^1\times {\mathrm{1279}}^1\times {\mathrm{3947}}^1$

素因数の和:5237

約数の個数: 32

約数和(自身を含む): 454809600

約数和(自身を除く): 252881080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1279, 2558, 3947, 5116, 6395, 7894, 10232, 12790, 15788, 19735, 25580, 31576, 39470, 51160, 78940, 157880, 5048213, 10096426, 20192852, 25241065, 40385704, 50482130, 100964260, 201928520]

約数ペア:

[(1, 201928520), (2, 100964260), (4, 50482130), (5, 40385704), (8, 25241065), (10, 20192852), (20, 10096426), (40, 5048213), (1279, 157880), (2558, 78940), (3947, 51160), (5116, 39470), (6395, 31576), (7894, 25580), (10232, 19735), (12790, 15788)]