20345456

素因数分解:

$2^4\times {\mathrm{397}}^1\times {\mathrm{3203}}^1$

素因数の和:3608

約数の個数: 20

約数和(自身を含む): 39530952

約数和(自身を除く): 19185496

約数列:

[1, 2, 4, 8, 16, 397, 794, 1588, 3176, 3203, 6352, 6406, 12812, 25624, 51248, 1271591, 2543182, 5086364, 10172728, 20345456]

約数ペア:

[(1, 20345456), (2, 10172728), (4, 5086364), (8, 2543182), (16, 1271591), (397, 51248), (794, 25624), (1588, 12812), (3176, 6406), (3203, 6352)]