81078655

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{457}}^1$

素因数の和:643

約数の個数: 32

約数和(自身を含む): 115284096

約数和(自身を除く): 34205441

約数列:

[1, 5, 7, 35, 37, 137, 185, 259, 457, 685, 959, 1295, 2285, 3199, 4795, 5069, 15995, 16909, 25345, 35483, 62609, 84545, 118363, 177415, 313045, 438263, 591815, 2191315, 2316533, 11582665, 16215731, 81078655]

約数ペア:

[(1, 81078655), (5, 16215731), (7, 11582665), (35, 2316533), (37, 2191315), (137, 591815), (185, 438263), (259, 313045), (457, 177415), (685, 118363), (959, 84545), (1295, 62609), (2285, 35483), (3199, 25345), (4795, 16909), (5069, 15995)]