81189796

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{491}}^1\times {\mathrm{617}}^1$

素因数の和:1179

約数の個数: 24

約数和(自身を含む): 144730656

約数和(自身を除く): 63540860

約数列:

[1, 2, 4, 67, 134, 268, 491, 617, 982, 1234, 1964, 2468, 32897, 41339, 65794, 82678, 131588, 165356, 302947, 605894, 1211788, 20297449, 40594898, 81189796]

約数ペア:

[(1, 81189796), (2, 40594898), (4, 20297449), (67, 1211788), (134, 605894), (268, 302947), (491, 165356), (617, 131588), (982, 82678), (1234, 65794), (1964, 41339), (2468, 32897)]