66641380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{256313}}^1$

素因数の和:256335

約数の個数: 24

約数和(自身を含む): 150712632

約数和(自身を除く): 84071252

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 256313, 512626, 1025252, 1281565, 2563130, 3332069, 5126260, 6664138, 13328276, 16660345, 33320690, 66641380]

約数ペア:

[(1, 66641380), (2, 33320690), (4, 16660345), (5, 13328276), (10, 6664138), (13, 5126260), (20, 3332069), (26, 2563130), (52, 1281565), (65, 1025252), (130, 512626), (260, 256313)]