18818820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{104549}}^1$

素因数の和:104564

約数の個数: 36

約数和(自身を含む): 57084300

約数和(自身を除く): 38265480

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 104549, 209098, 313647, 418196, 522745, 627294, 940941, 1045490, 1254588, 1568235, 1881882, 2090980, 3136470, 3763764, 4704705, 6272940, 9409410, 18818820]

約数ペア:

[(1, 18818820), (2, 9409410), (3, 6272940), (4, 4704705), (5, 3763764), (6, 3136470), (9, 2090980), (10, 1881882), (12, 1568235), (15, 1254588), (18, 1045490), (20, 940941), (30, 627294), (36, 522745), (45, 418196), (60, 313647), (90, 209098), (180, 104549)]