205012620

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{126551}}^1$

素因数の和:126572

約数の個数: 60

約数和(自身を含む): 643137264

約数和(自身を除く): 438124644

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 126551, 253102, 379653, 506204, 632755, 759306, 1138959, 1265510, 1518612, 1898265, 2277918, 2531020, 3416877, 3796530, 4555836, 5694795, 6833754, 7593060, 10250631, 11389590, 13667508, 17084385, 20501262, 22779180, 34168770, 41002524, 51253155, 68337540, 102506310, 205012620]

約数ペア:

[(1, 205012620), (2, 102506310), (3, 68337540), (4, 51253155), (5, 41002524), (6, 34168770), (9, 22779180), (10, 20501262), (12, 17084385), (15, 13667508), (18, 11389590), (20, 10250631), (27, 7593060), (30, 6833754), (36, 5694795), (45, 4555836), (54, 3796530), (60, 3416877), (81, 2531020), (90, 2277918), (108, 1898265), (135, 1518612), (162, 1265510), (180, 1138959), (270, 759306), (324, 632755), (405, 506204), (540, 379653), (810, 253102), (1620, 126551)]