123422920

素因数分解:

$2^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{8741}}^1$

素因数の和:9105

約数の個数: 32

約数和(自身を含む): 278520120

約数和(自身を除く): 155097200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 353, 706, 1412, 1765, 2824, 3530, 7060, 8741, 14120, 17482, 34964, 43705, 69928, 87410, 174820, 349640, 3085573, 6171146, 12342292, 15427865, 24684584, 30855730, 61711460, 123422920]

約数ペア:

[(1, 123422920), (2, 61711460), (4, 30855730), (5, 24684584), (8, 15427865), (10, 12342292), (20, 6171146), (40, 3085573), (353, 349640), (706, 174820), (1412, 87410), (1765, 69928), (2824, 43705), (3530, 34964), (7060, 17482), (8741, 14120)]