19861180

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1951}}^1$

素因数の和:2469

約数の個数: 24

約数和(自身を含む): 41811840

約数和(自身を除く): 21950660

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 1951, 2036, 2545, 3902, 5090, 7804, 9755, 10180, 19510, 39020, 993059, 1986118, 3972236, 4965295, 9930590, 19861180]

約数ペア:

[(1, 19861180), (2, 9930590), (4, 4965295), (5, 3972236), (10, 1986118), (20, 993059), (509, 39020), (1018, 19510), (1951, 10180), (2036, 9755), (2545, 7804), (3902, 5090)]