280520305

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{187639}}^1$

素因数の和:187680

約数の個数: 16

約数和(自身を含む): 378282240

約数和(自身を除く): 97761935

約数列:

[1, 5, 13, 23, 65, 115, 299, 1495, 187639, 938195, 2439307, 4315697, 12196535, 21578485, 56104061, 280520305]

約数ペア:

[(1, 280520305), (5, 56104061), (13, 21578485), (23, 12196535), (65, 4315697), (115, 2439307), (299, 938195), (1495, 187639)]