2080404020

素因数分解:

$2^2\times 5^1\times {\mathrm{1153}}^1\times {\mathrm{90217}}^1$

素因数の和:91379

約数の個数: 24

約数和(自身を含む): 4372686024

約数和(自身を除く): 2292282004

約数列:

[1, 2, 4, 5, 10, 20, 1153, 2306, 4612, 5765, 11530, 23060, 90217, 180434, 360868, 451085, 902170, 1804340, 104020201, 208040402, 416080804, 520101005, 1040202010, 2080404020]

約数ペア:

[(1, 2080404020), (2, 1040202010), (4, 520101005), (5, 416080804), (10, 208040402), (20, 104020201), (1153, 1804340), (2306, 902170), (4612, 451085), (5765, 360868), (11530, 180434), (23060, 90217)]