19679960

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{9283}}^1$

素因数の和:9347

約数の個数: 32

約数和(自身を含む): 45120240

約数和(自身を除く): 25440280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 9283, 18566, 37132, 46415, 74264, 92830, 185660, 371320, 491999, 983998, 1967996, 2459995, 3935992, 4919990, 9839980, 19679960]

約数ペア:

[(1, 19679960), (2, 9839980), (4, 4919990), (5, 3935992), (8, 2459995), (10, 1967996), (20, 983998), (40, 491999), (53, 371320), (106, 185660), (212, 92830), (265, 74264), (424, 46415), (530, 37132), (1060, 18566), (2120, 9283)]