20199059020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{646991}}^1$

素因数の和:647230

約数の個数: 48

約数和(自身を含む): 48695205888

約数和(自身を除く): 28496146868

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 223, 446, 892, 1115, 1561, 2230, 3122, 4460, 6244, 7805, 15610, 31220, 646991, 1293982, 2587964, 3234955, 4528937, 6469910, 9057874, 12939820, 18115748, 22644685, 45289370, 90578740, 144278993, 288557986, 577115972, 721394965, 1009952951, 1442789930, 2019905902, 2885579860, 4039811804, 5049764755, 10099529510, 20199059020]

約数ペア:

[(1, 20199059020), (2, 10099529510), (4, 5049764755), (5, 4039811804), (7, 2885579860), (10, 2019905902), (14, 1442789930), (20, 1009952951), (28, 721394965), (35, 577115972), (70, 288557986), (140, 144278993), (223, 90578740), (446, 45289370), (892, 22644685), (1115, 18115748), (1561, 12939820), (2230, 9057874), (3122, 6469910), (4460, 4528937), (6244, 3234955), (7805, 2587964), (15610, 1293982), (31220, 646991)]