19026580

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{13399}}^1$

素因数の和:13479

約数の個数: 24

約数和(自身を含む): 40521600

約数和(自身を除く): 21495020

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 13399, 26798, 53596, 66995, 133990, 267980, 951329, 1902658, 3805316, 4756645, 9513290, 19026580]

約数ペア:

[(1, 19026580), (2, 9513290), (4, 4756645), (5, 3805316), (10, 1902658), (20, 951329), (71, 267980), (142, 133990), (284, 66995), (355, 53596), (710, 26798), (1420, 13399)]