20442256

素因数分解:

$2^4\times {\mathrm{643}}^1\times {\mathrm{1987}}^1$

素因数の和:2638

約数の個数: 20

約数和(自身を含む): 39688432

約数和(自身を除く): 19246176

約数列:

[1, 2, 4, 8, 16, 643, 1286, 1987, 2572, 3974, 5144, 7948, 10288, 15896, 31792, 1277641, 2555282, 5110564, 10221128, 20442256]

約数ペア:

[(1, 20442256), (2, 10221128), (4, 5110564), (8, 2555282), (16, 1277641), (643, 31792), (1286, 15896), (1987, 10288), (2572, 7948), (3974, 5144)]