90720637

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1\times {\mathrm{653}}^1$

素因数の和:972

約数の個数: 16

約数和(自身を含む): 105477120

約数和(自身を除く): 14756483

約数列:

[1, 7, 89, 223, 623, 653, 1561, 4571, 19847, 58117, 138929, 145619, 406819, 1019333, 12960091, 90720637]

約数ペア:

[(1, 90720637), (7, 12960091), (89, 1019333), (223, 406819), (623, 145619), (653, 138929), (1561, 58117), (4571, 19847)]