213804080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{381793}}^1$

素因数の和:381813

約数の個数: 40

約数和(自身を含む): 568109472

約数和(自身を除く): 354305392

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 381793, 763586, 1527172, 1908965, 2672551, 3054344, 3817930, 5345102, 6108688, 7635860, 10690204, 13362755, 15271720, 21380408, 26725510, 30543440, 42760816, 53451020, 106902040, 213804080]

約数ペア:

[(1, 213804080), (2, 106902040), (4, 53451020), (5, 42760816), (7, 30543440), (8, 26725510), (10, 21380408), (14, 15271720), (16, 13362755), (20, 10690204), (28, 7635860), (35, 6108688), (40, 5345102), (56, 3817930), (70, 3054344), (80, 2672551), (112, 1908965), (140, 1527172), (280, 763586), (560, 381793)]