20218497608

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{761}}^1\times {\mathrm{81001}}^1$

素因数の和:81809

約数の個数: 32

約数和(自身を含む): 38885820120

約数和(自身を除く): 18667322512

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 761, 1522, 3044, 6088, 31201, 62402, 81001, 124804, 162002, 249608, 324004, 648008, 3321041, 6642082, 13284164, 26568328, 61641761, 123283522, 246567044, 493134088, 2527312201, 5054624402, 10109248804, 20218497608]

約数ペア:

[(1, 20218497608), (2, 10109248804), (4, 5054624402), (8, 2527312201), (41, 493134088), (82, 246567044), (164, 123283522), (328, 61641761), (761, 26568328), (1522, 13284164), (3044, 6642082), (6088, 3321041), (31201, 648008), (62402, 324004), (81001, 249608), (124804, 162002)]