1280352385

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{859}}^1\times {\mathrm{997}}^1$

素因数の和:1897

約数の個数: 32

約数和(自身を含む): 1730292480

約数和(自身を除く): 449940095

約数列:

[1, 5, 13, 23, 65, 115, 299, 859, 997, 1495, 4295, 4985, 11167, 12961, 19757, 22931, 55835, 64805, 98785, 114655, 256841, 298103, 856423, 1284205, 1490515, 4282115, 11133499, 19697729, 55667495, 98488645, 256070477, 1280352385]

約数ペア:

[(1, 1280352385), (5, 256070477), (13, 98488645), (23, 55667495), (65, 19697729), (115, 11133499), (299, 4282115), (859, 1490515), (997, 1284205), (1495, 856423), (4295, 298103), (4985, 256841), (11167, 114655), (12961, 98785), (19757, 64805), (22931, 55835)]