70198020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{389989}}^1$

素因数の和:390004

約数の個数: 36

約数和(自身を含む): 212934540

約数和(自身を除く): 142736520

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 389989, 779978, 1169967, 1559956, 1949945, 2339934, 3509901, 3899890, 4679868, 5849835, 7019802, 7799780, 11699670, 14039604, 17549505, 23399340, 35099010, 70198020]

約数ペア:

[(1, 70198020), (2, 35099010), (3, 23399340), (4, 17549505), (5, 14039604), (6, 11699670), (9, 7799780), (10, 7019802), (12, 5849835), (15, 4679868), (18, 3899890), (20, 3509901), (30, 2339934), (36, 1949945), (45, 1559956), (60, 1169967), (90, 779978), (180, 389989)]