1990202350

素因数分解:

$2^1\times 5^2\times {\mathrm{97}}^1\times {\mathrm{197}}^1\times {\mathrm{2083}}^1$

素因数の和:2389

約数の個数: 48

約数和(自身を含む): 3760728048

約数和(自身を除く): 1770525698

約数列:

[1, 2, 5, 10, 25, 50, 97, 194, 197, 394, 485, 970, 985, 1970, 2083, 2425, 4166, 4850, 4925, 9850, 10415, 19109, 20830, 38218, 52075, 95545, 104150, 191090, 202051, 404102, 410351, 477725, 820702, 955450, 1010255, 2020510, 2051755, 4103510, 5051275, 10102550, 10258775, 20517550, 39804047, 79608094, 199020235, 398040470, 995101175, 1990202350]

約数ペア:

[(1, 1990202350), (2, 995101175), (5, 398040470), (10, 199020235), (25, 79608094), (50, 39804047), (97, 20517550), (194, 10258775), (197, 10102550), (394, 5051275), (485, 4103510), (970, 2051755), (985, 2020510), (1970, 1010255), (2083, 955450), (2425, 820702), (4166, 477725), (4850, 410351), (4925, 404102), (9850, 202051), (10415, 191090), (19109, 104150), (20830, 95545), (38218, 52075)]