18837540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{457}}^1$

素因数の和:701

約数の個数: 72

約数和(自身を含む): 57515640

約数和(自身を除く): 38678100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 229, 457, 458, 687, 914, 916, 1145, 1371, 1374, 1828, 2061, 2285, 2290, 2742, 2748, 3435, 4113, 4122, 4570, 4580, 5484, 6855, 6870, 8226, 8244, 9140, 10305, 13710, 13740, 16452, 20565, 20610, 27420, 41130, 41220, 82260, 104653, 209306, 313959, 418612, 523265, 627918, 941877, 1046530, 1255836, 1569795, 1883754, 2093060, 3139590, 3767508, 4709385, 6279180, 9418770, 18837540]

約数ペア:

[(1, 18837540), (2, 9418770), (3, 6279180), (4, 4709385), (5, 3767508), (6, 3139590), (9, 2093060), (10, 1883754), (12, 1569795), (15, 1255836), (18, 1046530), (20, 941877), (30, 627918), (36, 523265), (45, 418612), (60, 313959), (90, 209306), (180, 104653), (229, 82260), (457, 41220), (458, 41130), (687, 27420), (914, 20610), (916, 20565), (1145, 16452), (1371, 13740), (1374, 13710), (1828, 10305), (2061, 9140), (2285, 8244), (2290, 8226), (2742, 6870), (2748, 6855), (3435, 5484), (4113, 4580), (4122, 4570)]