20185281616

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{20681641}}^1$

素因数の和:20681710

約数の個数: 20

約数和(自身を含む): 39750115924

約数和(自身を除く): 19564834308

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 20681641, 41363282, 82726564, 165453128, 330906256, 1261580101, 2523160202, 5046320404, 10092640808, 20185281616]

約数ペア:

[(1, 20185281616), (2, 10092640808), (4, 5046320404), (8, 2523160202), (16, 1261580101), (61, 330906256), (122, 165453128), (244, 82726564), (488, 41363282), (976, 20681641)]