77378620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{547}}^1\times {\mathrm{643}}^1$

素因数の和:1210

約数の個数: 48

約数和(自身を含む): 177867648

約数和(自身を除く): 100489028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 547, 643, 1094, 1286, 2188, 2572, 2735, 3215, 5470, 6017, 6430, 7073, 10940, 12034, 12860, 14146, 24068, 28292, 30085, 35365, 60170, 70730, 120340, 141460, 351721, 703442, 1406884, 1758605, 3517210, 3868931, 7034420, 7737862, 15475724, 19344655, 38689310, 77378620]

約数ペア:

[(1, 77378620), (2, 38689310), (4, 19344655), (5, 15475724), (10, 7737862), (11, 7034420), (20, 3868931), (22, 3517210), (44, 1758605), (55, 1406884), (110, 703442), (220, 351721), (547, 141460), (643, 120340), (1094, 70730), (1286, 60170), (2188, 35365), (2572, 30085), (2735, 28292), (3215, 24068), (5470, 14146), (6017, 12860), (6430, 12034), (7073, 10940)]