79638020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{51713}}^1$

素因数の和:51740

約数の個数: 48

約数和(自身を含む): 208510848

約数和(自身を除く): 128872828

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 51713, 103426, 206852, 258565, 361991, 517130, 568843, 723982, 1034260, 1137686, 1447964, 1809955, 2275372, 2844215, 3619910, 3981901, 5688430, 7239820, 7963802, 11376860, 15927604, 19909505, 39819010, 79638020]

約数ペア:

[(1, 79638020), (2, 39819010), (4, 19909505), (5, 15927604), (7, 11376860), (10, 7963802), (11, 7239820), (14, 5688430), (20, 3981901), (22, 3619910), (28, 2844215), (35, 2275372), (44, 1809955), (55, 1447964), (70, 1137686), (77, 1034260), (110, 723982), (140, 568843), (154, 517130), (220, 361991), (308, 258565), (385, 206852), (770, 103426), (1540, 51713)]