538449940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{991}}^1\times {\mathrm{3881}}^1$

素因数の和:4888

約数の個数: 48

約数和(自身を含む): 1293917184

約数和(自身を除く): 755467244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 991, 1982, 3881, 3964, 4955, 6937, 7762, 9910, 13874, 15524, 19405, 19820, 27167, 27748, 34685, 38810, 54334, 69370, 77620, 108668, 135835, 138740, 271670, 543340, 3846071, 7692142, 15384284, 19230355, 26922497, 38460710, 53844994, 76921420, 107689988, 134612485, 269224970, 538449940]

約数ペア:

[(1, 538449940), (2, 269224970), (4, 134612485), (5, 107689988), (7, 76921420), (10, 53844994), (14, 38460710), (20, 26922497), (28, 19230355), (35, 15384284), (70, 7692142), (140, 3846071), (991, 543340), (1982, 271670), (3881, 138740), (3964, 135835), (4955, 108668), (6937, 77620), (7762, 69370), (9910, 54334), (13874, 38810), (15524, 34685), (19405, 27748), (19820, 27167)]