218772605

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{263}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 278505216

約数和(自身を除く): 59732611

約数列:

[1, 5, 43, 53, 73, 215, 263, 265, 365, 1315, 2279, 3139, 3869, 11309, 11395, 13939, 15695, 19199, 19345, 56545, 69695, 95995, 166367, 599377, 825557, 831835, 1017547, 2996885, 4127785, 5087735, 43754521, 218772605]

約数ペア:

[(1, 218772605), (5, 43754521), (43, 5087735), (53, 4127785), (73, 2996885), (215, 1017547), (263, 831835), (265, 825557), (365, 599377), (1315, 166367), (2279, 95995), (3139, 69695), (3869, 56545), (11309, 19345), (11395, 19199), (13939, 15695)]