2793140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 6822144

約数和(自身を除く): 4029004

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 281, 284, 355, 497, 562, 710, 994, 1124, 1405, 1420, 1967, 1988, 2485, 2810, 3934, 4970, 5620, 7868, 9835, 9940, 19670, 19951, 39340, 39902, 79804, 99755, 139657, 199510, 279314, 399020, 558628, 698285, 1396570, 2793140]

約数ペア:

[(1, 2793140), (2, 1396570), (4, 698285), (5, 558628), (7, 399020), (10, 279314), (14, 199510), (20, 139657), (28, 99755), (35, 79804), (70, 39902), (71, 39340), (140, 19951), (142, 19670), (281, 9940), (284, 9835), (355, 7868), (497, 5620), (562, 4970), (710, 3934), (994, 2810), (1124, 2485), (1405, 1988), (1420, 1967)]