20154564332

素因数分解:

$2^2\times 7^1\times {\mathrm{349}}^1\times {\mathrm{709}}^1\times {\mathrm{2909}}^1$

素因数の和:3978

約数の個数: 48

約数和(自身を含む): 40495560000

約数和(自身を除く): 20340995668

約数列:

[1, 2, 4, 7, 14, 28, 349, 698, 709, 1396, 1418, 2443, 2836, 2909, 4886, 4963, 5818, 9772, 9926, 11636, 19852, 20363, 40726, 81452, 247441, 494882, 989764, 1015241, 1732087, 2030482, 2062481, 3464174, 4060964, 4124962, 6928348, 7106687, 8249924, 14213374, 14437367, 28426748, 28874734, 57749468, 719805869, 1439611738, 2879223476, 5038641083, 10077282166, 20154564332]

約数ペア:

[(1, 20154564332), (2, 10077282166), (4, 5038641083), (7, 2879223476), (14, 1439611738), (28, 719805869), (349, 57749468), (698, 28874734), (709, 28426748), (1396, 14437367), (1418, 14213374), (2443, 8249924), (2836, 7106687), (2909, 6928348), (4886, 4124962), (4963, 4060964), (5818, 3464174), (9772, 2062481), (9926, 2030482), (11636, 1732087), (19852, 1015241), (20363, 989764), (40726, 494882), (81452, 247441)]