18534980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{11731}}^1$

素因数の和:11819

約数の個数: 24

約数和(自身を含む): 39419520

約数和(自身を除く): 20884540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 11731, 23462, 46924, 58655, 117310, 234620, 926749, 1853498, 3706996, 4633745, 9267490, 18534980]

約数ペア:

[(1, 18534980), (2, 9267490), (4, 4633745), (5, 3706996), (10, 1853498), (20, 926749), (79, 234620), (158, 117310), (316, 58655), (395, 46924), (790, 23462), (1580, 11731)]