81444818

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{1187}}^1$

素因数の和:1251

約数の個数: 48

約数和(自身を含む): 156530880

約数和(自身を除く): 75086062

約数列:

[1, 2, 7, 13, 14, 26, 29, 58, 91, 169, 182, 203, 338, 377, 406, 754, 1183, 1187, 2366, 2374, 2639, 4901, 5278, 8309, 9802, 15431, 16618, 30862, 34307, 34423, 68614, 68846, 108017, 200603, 216034, 240961, 401206, 447499, 481922, 894998, 1404221, 2808442, 3132493, 5817487, 6264986, 11634974, 40722409, 81444818]

約数ペア:

[(1, 81444818), (2, 40722409), (7, 11634974), (13, 6264986), (14, 5817487), (26, 3132493), (29, 2808442), (58, 1404221), (91, 894998), (169, 481922), (182, 447499), (203, 401206), (338, 240961), (377, 216034), (406, 200603), (754, 108017), (1183, 68846), (1187, 68614), (2366, 34423), (2374, 34307), (2639, 30862), (4901, 16618), (5278, 15431), (8309, 9802)]