28420960

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{9349}}^1$

素因数の和:9383

約数の個数: 48

約数和(自身を含む): 70686000

約数和(自身を除く): 42265040

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 9349, 18698, 37396, 46745, 74792, 93490, 149584, 177631, 186980, 299168, 355262, 373960, 710524, 747920, 888155, 1421048, 1495840, 1776310, 2842096, 3552620, 5684192, 7105240, 14210480, 28420960]

約数ペア:

[(1, 28420960), (2, 14210480), (4, 7105240), (5, 5684192), (8, 3552620), (10, 2842096), (16, 1776310), (19, 1495840), (20, 1421048), (32, 888155), (38, 747920), (40, 710524), (76, 373960), (80, 355262), (95, 299168), (152, 186980), (160, 177631), (190, 149584), (304, 93490), (380, 74792), (608, 46745), (760, 37396), (1520, 18698), (3040, 9349)]