640697.00000000

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{82351}}^1$

素因数の和:82375

約数の個数: 40

約数和(自身を含む): 142963072

約数和(自身を除く): 91576048

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624, 82351, 164702, 247053, 329404, 494106, 658808, 988212, 1070563, 1317616, 1976424, 2141126, 3211689, 3952848, 4282252, 6423378, 8564504, 12846756, 17129008, 25693512, 51387024]

約数ペア:

[(1, 51387024), (2, 25693512), (3, 17129008), (4, 12846756), (6, 8564504), (8, 6423378), (12, 4282252), (13, 3952848), (16, 3211689), (24, 2141126), (26, 1976424), (39, 1317616), (48, 1070563), (52, 988212), (78, 658808), (104, 494106), (156, 329404), (208, 247053), (312, 164702), (624, 82351)]