77899745

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 123420672

約数和(自身を除く): 45520927

約数列:

[1, 5, 7, 11, 31, 35, 55, 61, 77, 107, 155, 217, 305, 341, 385, 427, 535, 671, 749, 1085, 1177, 1705, 1891, 2135, 2387, 3317, 3355, 3745, 4697, 5885, 6527, 8239, 9455, 11935, 13237, 16585, 20801, 23219, 23485, 32635, 36487, 41195, 45689, 66185, 71797, 104005, 116095, 145607, 182435, 202337, 228445, 255409, 358985, 502579, 728035, 1011685, 1277045, 1416359, 2225707, 2512895, 7081795, 11128535, 15579949, 77899745]

約数ペア:

[(1, 77899745), (5, 15579949), (7, 11128535), (11, 7081795), (31, 2512895), (35, 2225707), (55, 1416359), (61, 1277045), (77, 1011685), (107, 728035), (155, 502579), (217, 358985), (305, 255409), (341, 228445), (385, 202337), (427, 182435), (535, 145607), (671, 116095), (749, 104005), (1085, 71797), (1177, 66185), (1705, 45689), (1891, 41195), (2135, 36487), (2387, 32635), (3317, 23485), (3355, 23219), (3745, 20801), (4697, 16585), (5885, 13237), (6527, 11935), (8239, 9455)]