27990025

素因数分解:

$5^2\times 7^2\times {\mathrm{73}}^1\times {\mathrm{313}}^1$

素因数の和:410

約数の個数: 36

約数和(自身を含む): 41058012

約数和(自身を除く): 13067987

約数列:

[1, 5, 7, 25, 35, 49, 73, 175, 245, 313, 365, 511, 1225, 1565, 1825, 2191, 2555, 3577, 7825, 10955, 12775, 15337, 17885, 22849, 54775, 76685, 89425, 114245, 159943, 383425, 571225, 799715, 1119601, 3998575, 5598005, 27990025]

約数ペア:

[(1, 27990025), (5, 5598005), (7, 3998575), (25, 1119601), (35, 799715), (49, 571225), (73, 383425), (175, 159943), (245, 114245), (313, 89425), (365, 76685), (511, 54775), (1225, 22849), (1565, 17885), (1825, 15337), (2191, 12775), (2555, 10955), (3577, 7825)]