30731120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{54877}}^1$

素因数の和:54897

約数の個数: 40

約数和(自身を含む): 81658464

約数和(自身を除く): 50927344

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 54877, 109754, 219508, 274385, 384139, 439016, 548770, 768278, 878032, 1097540, 1536556, 1920695, 2195080, 3073112, 3841390, 4390160, 6146224, 7682780, 15365560, 30731120]

約数ペア:

[(1, 30731120), (2, 15365560), (4, 7682780), (5, 6146224), (7, 4390160), (8, 3841390), (10, 3073112), (14, 2195080), (16, 1920695), (20, 1536556), (28, 1097540), (35, 878032), (40, 768278), (56, 548770), (70, 439016), (80, 384139), (112, 274385), (140, 219508), (280, 109754), (560, 54877)]