20202545

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:122

約数の個数: 48

約数和(自身を含む): 29707776

約数和(自身を除く): 9505231

約数列:

[1, 5, 11, 17, 31, 41, 55, 85, 155, 187, 205, 289, 341, 451, 527, 697, 935, 1271, 1445, 1705, 2255, 2635, 3179, 3485, 5797, 6355, 7667, 8959, 11849, 13981, 15895, 21607, 28985, 38335, 44795, 59245, 69905, 98549, 108035, 130339, 237677, 367319, 492745, 651695, 1188385, 1836595, 4040509, 20202545]

約数ペア:

[(1, 20202545), (5, 4040509), (11, 1836595), (17, 1188385), (31, 651695), (41, 492745), (55, 367319), (85, 237677), (155, 130339), (187, 108035), (205, 98549), (289, 69905), (341, 59245), (451, 44795), (527, 38335), (697, 28985), (935, 21607), (1271, 15895), (1445, 13981), (1705, 11849), (2255, 8959), (2635, 7667), (3179, 6355), (3485, 5797)]