209969340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{499927}}^1$

素因数の和:499946

約数の個数: 48

約数和(自身を含む): 671903232

約数和(自身を除く): 461933892

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 499927, 999854, 1499781, 1999708, 2499635, 2999562, 3499489, 4999270, 5999124, 6998978, 7498905, 9998540, 10498467, 13997956, 14997810, 17497445, 20996934, 29995620, 34994890, 41993868, 52492335, 69989780, 104984670, 209969340]

約数ペア:

[(1, 209969340), (2, 104984670), (3, 69989780), (4, 52492335), (5, 41993868), (6, 34994890), (7, 29995620), (10, 20996934), (12, 17497445), (14, 14997810), (15, 13997956), (20, 10498467), (21, 9998540), (28, 7498905), (30, 6998978), (35, 5999124), (42, 4999270), (60, 3499489), (70, 2999562), (84, 2499635), (105, 1999708), (140, 1499781), (210, 999854), (420, 499927)]