20191628156

素因数分解:

$2^2\times 7^2\times {\mathrm{409}}^1\times {\mathrm{251879}}^1$

素因数の和:252306

約数の個数: 36

約数和(自身を含む): 41205049200

約数和(自身を除く): 21013421044

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 409, 818, 1636, 2863, 5726, 11452, 20041, 40082, 80164, 251879, 503758, 1007516, 1763153, 3526306, 7052612, 12342071, 24684142, 49368284, 103018511, 206037022, 412074044, 721129577, 1442259154, 2884518308, 5047907039, 10095814078, 20191628156]

約数ペア:

[(1, 20191628156), (2, 10095814078), (4, 5047907039), (7, 2884518308), (14, 1442259154), (28, 721129577), (49, 412074044), (98, 206037022), (196, 103018511), (409, 49368284), (818, 24684142), (1636, 12342071), (2863, 7052612), (5726, 3526306), (11452, 1763153), (20041, 1007516), (40082, 503758), (80164, 251879)]