2019085840

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{126827}}^1$

素因数の和:127039

約数の個数: 40

約数和(自身を含む): 4718001600

約数和(自身を除く): 2698915760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1592, 1990, 3184, 3980, 7960, 15920, 126827, 253654, 507308, 634135, 1014616, 1268270, 2029232, 2536540, 5073080, 10146160, 25238573, 50477146, 100954292, 126192865, 201908584, 252385730, 403817168, 504771460, 1009542920, 2019085840]

約数ペア:

[(1, 2019085840), (2, 1009542920), (4, 504771460), (5, 403817168), (8, 252385730), (10, 201908584), (16, 126192865), (20, 100954292), (40, 50477146), (80, 25238573), (199, 10146160), (398, 5073080), (796, 2536540), (995, 2029232), (1592, 1268270), (1990, 1014616), (3184, 634135), (3980, 507308), (7960, 253654), (15920, 126827)]