20127268

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{229}}^1$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 41937280

約数和(自身を除く): 21810012

約数列:

[1, 2, 4, 7, 14, 28, 43, 73, 86, 146, 172, 229, 292, 301, 458, 511, 602, 916, 1022, 1204, 1603, 2044, 3139, 3206, 6278, 6412, 9847, 12556, 16717, 19694, 21973, 33434, 39388, 43946, 66868, 68929, 87892, 117019, 137858, 234038, 275716, 468076, 718831, 1437662, 2875324, 5031817, 10063634, 20127268]

約数ペア:

[(1, 20127268), (2, 10063634), (4, 5031817), (7, 2875324), (14, 1437662), (28, 718831), (43, 468076), (73, 275716), (86, 234038), (146, 137858), (172, 117019), (229, 87892), (292, 68929), (301, 66868), (458, 43946), (511, 39388), (602, 33434), (916, 21973), (1022, 19694), (1204, 16717), (1603, 12556), (2044, 9847), (3139, 6412), (3206, 6278)]