278528965

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{16937}}^1$

素因数の和:16989

約数の個数: 32

約数和(自身を含む): 409764096

約数和(自身を除く): 131235131

約数列:

[1, 5, 11, 13, 23, 55, 65, 115, 143, 253, 299, 715, 1265, 1495, 3289, 16445, 16937, 84685, 186307, 220181, 389551, 931535, 1100905, 1947755, 2421991, 4285061, 5064163, 12109955, 21425305, 25320815, 55705793, 278528965]

約数ペア:

[(1, 278528965), (5, 55705793), (11, 25320815), (13, 21425305), (23, 12109955), (55, 5064163), (65, 4285061), (115, 2421991), (143, 1947755), (253, 1100905), (299, 931535), (715, 389551), (1265, 220181), (1495, 186307), (3289, 84685), (16445, 16937)]