64242220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:391

約数の個数: 96

約数和(自身を含む): 163731456

約数和(自身を除く): 99489236

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 71, 92, 115, 140, 142, 161, 230, 281, 284, 322, 355, 460, 497, 562, 644, 710, 805, 994, 1124, 1405, 1420, 1610, 1633, 1967, 1988, 2485, 2810, 3220, 3266, 3934, 4970, 5620, 6463, 6532, 7868, 8165, 9835, 9940, 11431, 12926, 16330, 19670, 19951, 22862, 25852, 32315, 32660, 39340, 39902, 45241, 45724, 57155, 64630, 79804, 90482, 99755, 114310, 129260, 139657, 180964, 199510, 226205, 228620, 279314, 399020, 452410, 458873, 558628, 698285, 904820, 917746, 1396570, 1835492, 2294365, 2793140, 3212111, 4588730, 6424222, 9177460, 12848444, 16060555, 32121110, 64242220]

約数ペア:

[(1, 64242220), (2, 32121110), (4, 16060555), (5, 12848444), (7, 9177460), (10, 6424222), (14, 4588730), (20, 3212111), (23, 2793140), (28, 2294365), (35, 1835492), (46, 1396570), (70, 917746), (71, 904820), (92, 698285), (115, 558628), (140, 458873), (142, 452410), (161, 399020), (230, 279314), (281, 228620), (284, 226205), (322, 199510), (355, 180964), (460, 139657), (497, 129260), (562, 114310), (644, 99755), (710, 90482), (805, 79804), (994, 64630), (1124, 57155), (1405, 45724), (1420, 45241), (1610, 39902), (1633, 39340), (1967, 32660), (1988, 32315), (2485, 25852), (2810, 22862), (3220, 19951), (3266, 19670), (3934, 16330), (4970, 12926), (5620, 11431), (6463, 9940), (6532, 9835), (7868, 8165)]