198831580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{27539}}^1$

素因数の和:27586

約数の個数: 36

約数和(自身を含む): 440695080

約数和(自身を除く): 241863500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 3610, 7220, 27539, 55078, 110156, 137695, 275390, 523241, 550780, 1046482, 2092964, 2616205, 5232410, 9941579, 10464820, 19883158, 39766316, 49707895, 99415790, 198831580]

約数ペア:

[(1, 198831580), (2, 99415790), (4, 49707895), (5, 39766316), (10, 19883158), (19, 10464820), (20, 9941579), (38, 5232410), (76, 2616205), (95, 2092964), (190, 1046482), (361, 550780), (380, 523241), (722, 275390), (1444, 137695), (1805, 110156), (3610, 55078), (7220, 27539)]