19931780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{90599}}^1$

素因数の和:90619

約数の個数: 24

約数和(自身を含む): 45662400

約数和(自身を除く): 25730620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 90599, 181198, 362396, 452995, 905990, 996589, 1811980, 1993178, 3986356, 4982945, 9965890, 19931780]

約数ペア:

[(1, 19931780), (2, 9965890), (4, 4982945), (5, 3986356), (10, 1993178), (11, 1811980), (20, 996589), (22, 905990), (44, 452995), (55, 362396), (110, 181198), (220, 90599)]