638432

素因数分解:

$2^5\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:362

約数の個数: 24

約数和(自身を含む): 1279152

約数和(自身を除く): 640720

約数列:

[1, 2, 4, 8, 16, 32, 71, 142, 281, 284, 562, 568, 1124, 1136, 2248, 2272, 4496, 8992, 19951, 39902, 79804, 159608, 319216, 638432]

約数ペア:

[(1, 638432), (2, 319216), (4, 159608), (8, 79804), (16, 39902), (32, 19951), (71, 8992), (142, 4496), (281, 2272), (284, 2248), (562, 1136), (568, 1124)]