289288415

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{1487}}^1$

素因数の和:1619

約数の個数: 32

約数和(自身を含む): 388475136

約数和(自身を除く): 99186721

約数列:

[1, 5, 13, 41, 65, 73, 205, 365, 533, 949, 1487, 2665, 2993, 4745, 7435, 14965, 19331, 38909, 60967, 96655, 108551, 194545, 304835, 542755, 792571, 1411163, 3962855, 4450591, 7055815, 22252955, 57857683, 289288415]

約数ペア:

[(1, 289288415), (5, 57857683), (13, 22252955), (41, 7055815), (65, 4450591), (73, 3962855), (205, 1411163), (365, 792571), (533, 542755), (949, 304835), (1487, 194545), (2665, 108551), (2993, 96655), (4745, 60967), (7435, 38909), (14965, 19331)]