25728412

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^2$

素因数の和:238

約数の個数: 36

約数和(自身を含む): 49016016

約数和(自身を除く): 23287604

約数列:

[1, 2, 4, 17, 34, 68, 71, 73, 142, 146, 284, 292, 1207, 1241, 2414, 2482, 4828, 4964, 5183, 5329, 10366, 10658, 20732, 21316, 88111, 90593, 176222, 181186, 352444, 362372, 378359, 756718, 1513436, 6432103, 12864206, 25728412]

約数ペア:

[(1, 25728412), (2, 12864206), (4, 6432103), (17, 1513436), (34, 756718), (68, 378359), (71, 362372), (73, 352444), (142, 181186), (146, 176222), (284, 90593), (292, 88111), (1207, 21316), (1241, 20732), (2414, 10658), (2482, 10366), (4828, 5329), (4964, 5183)]