71128792

素因数分解:

$2^3\times 7^2\times {\mathrm{421}}^1\times {\mathrm{431}}^1$

素因数の和:872

約数の個数: 48

約数和(自身を含む): 155869920

約数和(自身を除く): 84741128

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 421, 431, 842, 862, 1684, 1724, 2947, 3017, 3368, 3448, 5894, 6034, 11788, 12068, 20629, 21119, 23576, 24136, 41258, 42238, 82516, 84476, 165032, 168952, 181451, 362902, 725804, 1270157, 1451608, 2540314, 5080628, 8891099, 10161256, 17782198, 35564396, 71128792]

約数ペア:

[(1, 71128792), (2, 35564396), (4, 17782198), (7, 10161256), (8, 8891099), (14, 5080628), (28, 2540314), (49, 1451608), (56, 1270157), (98, 725804), (196, 362902), (392, 181451), (421, 168952), (431, 165032), (842, 84476), (862, 82516), (1684, 42238), (1724, 41258), (2947, 24136), (3017, 23576), (3368, 21119), (3448, 20629), (5894, 12068), (6034, 11788)]