260521235

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{1609}}^1$

素因数の和:1727

約数の個数: 32

約数和(自身を含む): 350542080

約数和(自身を除く): 90020845

約数列:

[1, 5, 13, 47, 53, 65, 235, 265, 611, 689, 1609, 2491, 3055, 3445, 8045, 12455, 20917, 32383, 75623, 85277, 104585, 161915, 378115, 426385, 983099, 1108601, 4008019, 4915495, 5543005, 20040095, 52104247, 260521235]

約数ペア:

[(1, 260521235), (5, 52104247), (13, 20040095), (47, 5543005), (53, 4915495), (65, 4008019), (235, 1108601), (265, 983099), (611, 426385), (689, 378115), (1609, 161915), (2491, 104585), (3055, 85277), (3445, 75623), (8045, 32383), (12455, 20917)]