128081728

素因数分解:

$2^6\times {\mathrm{71}}^2\times {\mathrm{397}}^1$

素因数の和:551

約数の個数: 42

約数和(自身を含む): 258441698

約数和(自身を除く): 130359970

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 142, 284, 397, 568, 794, 1136, 1588, 2272, 3176, 4544, 5041, 6352, 10082, 12704, 20164, 25408, 28187, 40328, 56374, 80656, 112748, 161312, 225496, 322624, 450992, 901984, 1803968, 2001277, 4002554, 8005108, 16010216, 32020432, 64040864, 128081728]

約数ペア:

[(1, 128081728), (2, 64040864), (4, 32020432), (8, 16010216), (16, 8005108), (32, 4002554), (64, 2001277), (71, 1803968), (142, 901984), (284, 450992), (397, 322624), (568, 225496), (794, 161312), (1136, 112748), (1588, 80656), (2272, 56374), (3176, 40328), (4544, 28187), (5041, 25408), (6352, 20164), (10082, 12704)]