1256255

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 2032128

約数和(自身を除く): 775873

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 91, 143, 251, 385, 455, 715, 1001, 1255, 1757, 2761, 3263, 5005, 8785, 13805, 16315, 19327, 22841, 35893, 96635, 114205, 179465, 251251, 1256255]

約数ペア:

[(1, 1256255), (5, 251251), (7, 179465), (11, 114205), (13, 96635), (35, 35893), (55, 22841), (65, 19327), (77, 16315), (91, 13805), (143, 8785), (251, 5005), (385, 3263), (455, 2761), (715, 1757), (1001, 1255)]