20718088

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{229}}^1\times {\mathrm{263}}^1$

素因数の和:541

約数の個数: 32

約数和(自身を含む): 40075200

約数和(自身を除く): 19357112

約数列:

[1, 2, 4, 8, 43, 86, 172, 229, 263, 344, 458, 526, 916, 1052, 1832, 2104, 9847, 11309, 19694, 22618, 39388, 45236, 60227, 78776, 90472, 120454, 240908, 481816, 2589761, 5179522, 10359044, 20718088]

約数ペア:

[(1, 20718088), (2, 10359044), (4, 5179522), (8, 2589761), (43, 481816), (86, 240908), (172, 120454), (229, 90472), (263, 78776), (344, 60227), (458, 45236), (526, 39388), (916, 22618), (1052, 19694), (1832, 11309), (2104, 9847)]