78870420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{438169}}^1$

素因数の和:438184

約数の個数: 36

約数和(自身を含む): 239240820

約数和(自身を除く): 160370400

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 438169, 876338, 1314507, 1752676, 2190845, 2629014, 3943521, 4381690, 5258028, 6572535, 7887042, 8763380, 13145070, 15774084, 19717605, 26290140, 39435210, 78870420]

約数ペア:

[(1, 78870420), (2, 39435210), (3, 26290140), (4, 19717605), (5, 15774084), (6, 13145070), (9, 8763380), (10, 7887042), (12, 6572535), (15, 5258028), (18, 4381690), (20, 3943521), (30, 2629014), (36, 2190845), (45, 1752676), (60, 1314507), (90, 876338), (180, 438169)]