81502372

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{487}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 168340480

約数和(自身を除く): 86838108

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 139, 172, 278, 301, 487, 556, 602, 973, 974, 1204, 1946, 1948, 3409, 3892, 5977, 6818, 11954, 13636, 20941, 23908, 41839, 41882, 67693, 83678, 83764, 135386, 146587, 167356, 270772, 293174, 473851, 586348, 947702, 1895404, 2910799, 5821598, 11643196, 20375593, 40751186, 81502372]

約数ペア:

[(1, 81502372), (2, 40751186), (4, 20375593), (7, 11643196), (14, 5821598), (28, 2910799), (43, 1895404), (86, 947702), (139, 586348), (172, 473851), (278, 293174), (301, 270772), (487, 167356), (556, 146587), (602, 135386), (973, 83764), (974, 83678), (1204, 67693), (1946, 41882), (1948, 41839), (3409, 23908), (3892, 20941), (5977, 13636), (6818, 11954)]