9775990

素因数分解:

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

素因数の和:373

約数の個数: 48

約数和(自身を含む): 20831904

約数和(自身を除く): 11055914

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 71, 98, 142, 245, 281, 355, 490, 497, 562, 710, 994, 1405, 1967, 2485, 2810, 3479, 3934, 4970, 6958, 9835, 13769, 17395, 19670, 19951, 27538, 34790, 39902, 68845, 99755, 137690, 139657, 199510, 279314, 698285, 977599, 1396570, 1955198, 4887995, 9775990]

約数ペア:

[(1, 9775990), (2, 4887995), (5, 1955198), (7, 1396570), (10, 977599), (14, 698285), (35, 279314), (49, 199510), (70, 139657), (71, 137690), (98, 99755), (142, 68845), (245, 39902), (281, 34790), (355, 27538), (490, 19951), (497, 19670), (562, 17395), (710, 13769), (994, 9835), (1405, 6958), (1967, 4970), (2485, 3934), (2810, 3479)]