9979720

素因数分解:

$2^3\times 5^1\times {\mathrm{347}}^1\times {\mathrm{719}}^1$

素因数の和:1077

約数の個数: 32

約数和(自身を含む): 22550400

約数和(自身を除く): 12570680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 347, 694, 719, 1388, 1438, 1735, 2776, 2876, 3470, 3595, 5752, 6940, 7190, 13880, 14380, 28760, 249493, 498986, 997972, 1247465, 1995944, 2494930, 4989860, 9979720]

約数ペア:

[(1, 9979720), (2, 4989860), (4, 2494930), (5, 1995944), (8, 1247465), (10, 997972), (20, 498986), (40, 249493), (347, 28760), (694, 14380), (719, 13880), (1388, 7190), (1438, 6940), (1735, 5752), (2776, 3595), (2876, 3470)]