1311789025

素因数分解:

$5^2\times {\mathrm{31}}^2\times {\mathrm{54601}}^1$

素因数の和:54673

約数の個数: 18

約数和(自身を含む): 1680813366

約数和(自身を除く): 369024341

約数列:

[1, 5, 25, 31, 155, 775, 961, 4805, 24025, 54601, 273005, 1365025, 1692631, 8463155, 42315775, 52471561, 262357805, 1311789025]

約数ペア:

[(1, 1311789025), (5, 262357805), (25, 52471561), (31, 42315775), (155, 8463155), (775, 1692631), (961, 1365025), (4805, 273005), (24025, 54601)]