1281291245

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{65927}}^1$

素因数の和:65981

約数の個数: 24

約数和(自身を含む): 1737334656

約数和(自身を除く): 456043411

約数列:

[1, 5, 13, 23, 65, 115, 169, 299, 845, 1495, 3887, 19435, 65927, 329635, 857051, 1516321, 4285255, 7581605, 11141663, 19712173, 55708315, 98560865, 256258249, 1281291245]

約数ペア:

[(1, 1281291245), (5, 256258249), (13, 98560865), (23, 55708315), (65, 19712173), (115, 11141663), (169, 7581605), (299, 4285255), (845, 1516321), (1495, 857051), (3887, 329635), (19435, 65927)]