18680380

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{17623}}^1$

素因数の和:17685

約数の個数: 24

約数和(自身を含む): 39971232

約数和(自身を除く): 21290852

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 17623, 35246, 70492, 88115, 176230, 352460, 934019, 1868038, 3736076, 4670095, 9340190, 18680380]

約数ペア:

[(1, 18680380), (2, 9340190), (4, 4670095), (5, 3736076), (10, 1868038), (20, 934019), (53, 352460), (106, 176230), (212, 88115), (265, 70492), (530, 35246), (1060, 17623)]