30840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{257}}^1$

素因数の和:271

約数の個数: 32

約数和(自身を含む): 92880

約数和(自身を除く): 62040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 257, 514, 771, 1028, 1285, 1542, 2056, 2570, 3084, 3855, 5140, 6168, 7710, 10280, 15420, 30840]

約数ペア:

[(1, 30840), (2, 15420), (3, 10280), (4, 7710), (5, 6168), (6, 5140), (8, 3855), (10, 3084), (12, 2570), (15, 2056), (20, 1542), (24, 1285), (30, 1028), (40, 771), (60, 514), (120, 257)]