289705245

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:374

約数の個数: 64

約数和(自身を含む): 506373120

約数和(自身を除く): 216667875

約数列:

[1, 3, 5, 15, 17, 51, 73, 79, 85, 197, 219, 237, 255, 365, 395, 591, 985, 1095, 1185, 1241, 1343, 2955, 3349, 3723, 4029, 5767, 6205, 6715, 10047, 14381, 15563, 16745, 17301, 18615, 20145, 28835, 43143, 46689, 50235, 71905, 77815, 86505, 98039, 215715, 233445, 244477, 264571, 294117, 490195, 733431, 793713, 1136099, 1222385, 1322855, 1470585, 3408297, 3667155, 3968565, 5680495, 17041485, 19313683, 57941049, 96568415, 289705245]

約数ペア:

[(1, 289705245), (3, 96568415), (5, 57941049), (15, 19313683), (17, 17041485), (51, 5680495), (73, 3968565), (79, 3667155), (85, 3408297), (197, 1470585), (219, 1322855), (237, 1222385), (255, 1136099), (365, 793713), (395, 733431), (591, 490195), (985, 294117), (1095, 264571), (1185, 244477), (1241, 233445), (1343, 215715), (2955, 98039), (3349, 86505), (3723, 77815), (4029, 71905), (5767, 50235), (6205, 46689), (6715, 43143), (10047, 28835), (14381, 20145), (15563, 18615), (16745, 17301)]