1994399860

素因数分解:

$2^2\times 5^1\times {\mathrm{2213}}^1\times {\mathrm{45061}}^1$

素因数の和:47283

約数の個数: 24

約数和(自身を含む): 4190225256

約数和(自身を除く): 2195825396

約数列:

[1, 2, 4, 5, 10, 20, 2213, 4426, 8852, 11065, 22130, 44260, 45061, 90122, 180244, 225305, 450610, 901220, 99719993, 199439986, 398879972, 498599965, 997199930, 1994399860]

約数ペア:

[(1, 1994399860), (2, 997199930), (4, 498599965), (5, 398879972), (10, 199439986), (20, 99719993), (2213, 901220), (4426, 450610), (8852, 225305), (11065, 180244), (22130, 90122), (44260, 45061)]