128879648

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{129919}}^1$

素因数の和:129960

約数の個数: 24

約数和(自身を含む): 261918720

約数和(自身を除く): 133039072

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 124, 248, 496, 992, 129919, 259838, 519676, 1039352, 2078704, 4027489, 4157408, 8054978, 16109956, 32219912, 64439824, 128879648]

約数ペア:

[(1, 128879648), (2, 64439824), (4, 32219912), (8, 16109956), (16, 8054978), (31, 4157408), (32, 4027489), (62, 2078704), (124, 1039352), (248, 519676), (496, 259838), (992, 129919)]