20565242870

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1543}}^1\times {\mathrm{16871}}^1$

素因数の和:18500

約数の個数: 32

約数和(自身を含む): 37512529920

約数和(自身を除く): 16947287050

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 1543, 3086, 7715, 15430, 16871, 33742, 84355, 121897, 168710, 243794, 609485, 1218970, 1332809, 2665618, 6664045, 13328090, 26031953, 52063906, 130159765, 260319530, 2056524287, 4113048574, 10282621435, 20565242870]

約数ペア:

[(1, 20565242870), (2, 10282621435), (5, 4113048574), (10, 2056524287), (79, 260319530), (158, 130159765), (395, 52063906), (790, 26031953), (1543, 13328090), (3086, 6664045), (7715, 2665618), (15430, 1332809), (16871, 1218970), (33742, 609485), (84355, 243794), (121897, 168710)]