71281925

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:318

約数の個数: 48

約数和(自身を含む): 105326592

約数和(自身を除く): 34044667

約数列:

[1, 5, 11, 13, 25, 55, 65, 127, 143, 157, 275, 325, 635, 715, 785, 1397, 1651, 1727, 2041, 3175, 3575, 3925, 6985, 8255, 8635, 10205, 18161, 19939, 22451, 34925, 41275, 43175, 51025, 90805, 99695, 112255, 219329, 259207, 454025, 498475, 561275, 1096645, 1296035, 2851277, 5483225, 6480175, 14256385, 71281925]

約数ペア:

[(1, 71281925), (5, 14256385), (11, 6480175), (13, 5483225), (25, 2851277), (55, 1296035), (65, 1096645), (127, 561275), (143, 498475), (157, 454025), (275, 259207), (325, 219329), (635, 112255), (715, 99695), (785, 90805), (1397, 51025), (1651, 43175), (1727, 41275), (2041, 34925), (3175, 22451), (3575, 19939), (3925, 18161), (6985, 10205), (8255, 8635)]