64280255

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{397}}^1$

素因数の和:515

約数の個数: 32

約数和(自身を含む): 86655744

約数和(自身を除く): 22375489

約数列:

[1, 5, 13, 47, 53, 65, 235, 265, 397, 611, 689, 1985, 2491, 3055, 3445, 5161, 12455, 18659, 21041, 25805, 32383, 93295, 105205, 161915, 242567, 273533, 988927, 1212835, 1367665, 4944635, 12856051, 64280255]

約数ペア:

[(1, 64280255), (5, 12856051), (13, 4944635), (47, 1367665), (53, 1212835), (65, 988927), (235, 273533), (265, 242567), (397, 161915), (611, 105205), (689, 93295), (1985, 32383), (2491, 25805), (3055, 21041), (3445, 18659), (5161, 12455)]