31897255

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:315

約数の個数: 32

約数和(自身を含む): 43110144

約数和(自身を除く): 11212889

約数列:

[1, 5, 13, 47, 53, 65, 197, 235, 265, 611, 689, 985, 2491, 2561, 3055, 3445, 9259, 10441, 12455, 12805, 32383, 46295, 52205, 120367, 135733, 161915, 490727, 601835, 678665, 2453635, 6379451, 31897255]

約数ペア:

[(1, 31897255), (5, 6379451), (13, 2453635), (47, 678665), (53, 601835), (65, 490727), (197, 161915), (235, 135733), (265, 120367), (611, 52205), (689, 46295), (985, 32383), (2491, 12805), (2561, 12455), (3055, 10441), (3445, 9259)]