55145980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{145121}}^1$

素因数の和:145149

約数の個数: 24

約数和(自身を含む): 121902480

約数和(自身を除く): 66756500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 145121, 290242, 580484, 725605, 1451210, 2757299, 2902420, 5514598, 11029196, 13786495, 27572990, 55145980]

約数ペア:

[(1, 55145980), (2, 27572990), (4, 13786495), (5, 11029196), (10, 5514598), (19, 2902420), (20, 2757299), (38, 1451210), (76, 725605), (95, 580484), (190, 290242), (380, 145121)]