20405268

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{739}}^1$

素因数の和:821

約数の個数: 72

約数和(自身を含む): 56565600

約数和(自身を除く): 36160332

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 59, 78, 117, 118, 156, 177, 234, 236, 354, 468, 531, 708, 739, 767, 1062, 1478, 1534, 2124, 2217, 2301, 2956, 3068, 4434, 4602, 6651, 6903, 8868, 9204, 9607, 13302, 13806, 19214, 26604, 27612, 28821, 38428, 43601, 57642, 86463, 87202, 115284, 130803, 172926, 174404, 261606, 345852, 392409, 523212, 566813, 784818, 1133626, 1569636, 1700439, 2267252, 3400878, 5101317, 6801756, 10202634, 20405268]

約数ペア:

[(1, 20405268), (2, 10202634), (3, 6801756), (4, 5101317), (6, 3400878), (9, 2267252), (12, 1700439), (13, 1569636), (18, 1133626), (26, 784818), (36, 566813), (39, 523212), (52, 392409), (59, 345852), (78, 261606), (117, 174404), (118, 172926), (156, 130803), (177, 115284), (234, 87202), (236, 86463), (354, 57642), (468, 43601), (531, 38428), (708, 28821), (739, 27612), (767, 26604), (1062, 19214), (1478, 13806), (1534, 13302), (2124, 9607), (2217, 9204), (2301, 8868), (2956, 6903), (3068, 6651), (4434, 4602)]