80726672

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{388109}}^1$

素因数の和:388130

約数の個数: 20

約数和(自身を含む): 168439740

約数和(自身を除く): 87713068

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 388109, 776218, 1552436, 3104872, 5045417, 6209744, 10090834, 20181668, 40363336, 80726672]

約数ペア:

[(1, 80726672), (2, 40363336), (4, 20181668), (8, 10090834), (13, 6209744), (16, 5045417), (26, 3104872), (52, 1552436), (104, 776218), (208, 388109)]