1691262.00000000

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{305999}}^1$

素因数の和:306017

約数の個数: 32

約数和(自身を含む): 220320000

約数和(自身を除く): 134640280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 305999, 611998, 1223996, 1529995, 2141993, 2447992, 3059990, 4283986, 6119980, 8567972, 10709965, 12239960, 17135944, 21419930, 42839860, 85679720]

約数ペア:

[(1, 85679720), (2, 42839860), (4, 21419930), (5, 17135944), (7, 12239960), (8, 10709965), (10, 8567972), (14, 6119980), (20, 4283986), (28, 3059990), (35, 2447992), (40, 2141993), (56, 1529995), (70, 1223996), (140, 611998), (280, 305999)]