81218228

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{5189}}^1$

素因数の和:5256

約数の個数: 48

約数和(自身を含む): 179034240

約数和(自身を除く): 97816012

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 43, 52, 86, 91, 172, 182, 301, 364, 559, 602, 1118, 1204, 2236, 3913, 5189, 7826, 10378, 15652, 20756, 36323, 67457, 72646, 134914, 145292, 223127, 269828, 446254, 472199, 892508, 944398, 1561889, 1888796, 2900651, 3123778, 5801302, 6247556, 11602604, 20304557, 40609114, 81218228]

約数ペア:

[(1, 81218228), (2, 40609114), (4, 20304557), (7, 11602604), (13, 6247556), (14, 5801302), (26, 3123778), (28, 2900651), (43, 1888796), (52, 1561889), (86, 944398), (91, 892508), (172, 472199), (182, 446254), (301, 269828), (364, 223127), (559, 145292), (602, 134914), (1118, 72646), (1204, 67457), (2236, 36323), (3913, 20756), (5189, 15652), (7826, 10378)]