20565856779

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{223}}^1\times {\mathrm{809}}^1$

素因数の和:1164

約数の個数: 64

約数和(自身を含む): 30888345600

約数和(自身を除く): 10322488821

約数列:

[1, 3, 13, 37, 39, 79, 111, 223, 237, 481, 669, 809, 1027, 1443, 2427, 2899, 2923, 3081, 8251, 8697, 8769, 10517, 17617, 24753, 29933, 31551, 37999, 52851, 63911, 89799, 107263, 113997, 180407, 191733, 229021, 321789, 389129, 541221, 651829, 687063, 830843, 1167387, 1955487, 2345291, 2364707, 2492529, 6675059, 7035873, 7094121, 8473777, 14252153, 20025177, 25421331, 30741191, 42756459, 86775767, 92223573, 185277989, 260327301, 527329661, 555833967, 1581988983, 6855285593, 20565856779]

約数ペア:

[(1, 20565856779), (3, 6855285593), (13, 1581988983), (37, 555833967), (39, 527329661), (79, 260327301), (111, 185277989), (223, 92223573), (237, 86775767), (481, 42756459), (669, 30741191), (809, 25421331), (1027, 20025177), (1443, 14252153), (2427, 8473777), (2899, 7094121), (2923, 7035873), (3081, 6675059), (8251, 2492529), (8697, 2364707), (8769, 2345291), (10517, 1955487), (17617, 1167387), (24753, 830843), (29933, 687063), (31551, 651829), (37999, 541221), (52851, 389129), (63911, 321789), (89799, 229021), (107263, 191733), (113997, 180407)]