20728448

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{12457}}^1$

素因数の和:12484

約数の個数: 32

約数和(自身を含む): 44475060

約数和(自身を除く): 23746612

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664, 12457, 24914, 49828, 99656, 161941, 199312, 323882, 398624, 647764, 797248, 1295528, 1594496, 2591056, 5182112, 10364224, 20728448]

約数ペア:

[(1, 20728448), (2, 10364224), (4, 5182112), (8, 2591056), (13, 1594496), (16, 1295528), (26, 797248), (32, 647764), (52, 398624), (64, 323882), (104, 199312), (128, 161941), (208, 99656), (416, 49828), (832, 24914), (1664, 12457)]