20628135

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{479}}^1$

素因数の和:533

約数の個数: 64

約数和(自身を含む): 41472000

約数和(自身を除く): 20843865

約数列:

[1, 3, 5, 9, 11, 15, 27, 29, 33, 45, 55, 87, 99, 135, 145, 165, 261, 297, 319, 435, 479, 495, 783, 957, 1305, 1437, 1485, 1595, 2395, 2871, 3915, 4311, 4785, 5269, 7185, 8613, 12933, 13891, 14355, 15807, 21555, 26345, 41673, 43065, 47421, 64665, 69455, 79035, 125019, 142263, 152801, 208365, 237105, 375057, 458403, 625095, 711315, 764005, 1375209, 1875285, 2292015, 4125627, 6876045, 20628135]

約数ペア:

[(1, 20628135), (3, 6876045), (5, 4125627), (9, 2292015), (11, 1875285), (15, 1375209), (27, 764005), (29, 711315), (33, 625095), (45, 458403), (55, 375057), (87, 237105), (99, 208365), (135, 152801), (145, 142263), (165, 125019), (261, 79035), (297, 69455), (319, 64665), (435, 47421), (479, 43065), (495, 41673), (783, 26345), (957, 21555), (1305, 15807), (1437, 14355), (1485, 13891), (1595, 12933), (2395, 8613), (2871, 7185), (3915, 5269), (4311, 4785)]