20780512

素因数分解:

$2^5\times {\mathrm{281}}^1\times {\mathrm{2311}}^1$

素因数の和:2602

約数の個数: 24

約数和(自身を含む): 41074992

約数和(自身を除く): 20294480

約数列:

[1, 2, 4, 8, 16, 32, 281, 562, 1124, 2248, 2311, 4496, 4622, 8992, 9244, 18488, 36976, 73952, 649391, 1298782, 2597564, 5195128, 10390256, 20780512]

約数ペア:

[(1, 20780512), (2, 10390256), (4, 5195128), (8, 2597564), (16, 1298782), (32, 649391), (281, 73952), (562, 36976), (1124, 18488), (2248, 9244), (2311, 8992), (4496, 4622)]