79901820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{443899}}^1$

素因数の和:443914

約数の個数: 36

約数和(自身を含む): 242369400

約数和(自身を除く): 162467580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 443899, 887798, 1331697, 1775596, 2219495, 2663394, 3995091, 4438990, 5326788, 6658485, 7990182, 8877980, 13316970, 15980364, 19975455, 26633940, 39950910, 79901820]

約数ペア:

[(1, 79901820), (2, 39950910), (3, 26633940), (4, 19975455), (5, 15980364), (6, 13316970), (9, 8877980), (10, 7990182), (12, 6658485), (15, 5326788), (18, 4438990), (20, 3995091), (30, 2663394), (36, 2219495), (45, 1775596), (60, 1331697), (90, 887798), (180, 443899)]