257317875

素因数分解:

$3^2\times 5^3\times {\mathrm{127}}^1\times {\mathrm{1801}}^1$

素因数の和:1949

約数の個数: 48

約数和(自身を含む): 467770368

約数和(自身を除く): 210452493

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 127, 225, 375, 381, 635, 1125, 1143, 1801, 1905, 3175, 5403, 5715, 9005, 9525, 15875, 16209, 27015, 28575, 45025, 47625, 81045, 135075, 142875, 225125, 228727, 405225, 675375, 686181, 1143635, 2026125, 2058543, 3430905, 5718175, 10292715, 17154525, 28590875, 51463575, 85772625, 257317875]

約数ペア:

[(1, 257317875), (3, 85772625), (5, 51463575), (9, 28590875), (15, 17154525), (25, 10292715), (45, 5718175), (75, 3430905), (125, 2058543), (127, 2026125), (225, 1143635), (375, 686181), (381, 675375), (635, 405225), (1125, 228727), (1143, 225125), (1801, 142875), (1905, 135075), (3175, 81045), (5403, 47625), (5715, 45025), (9005, 28575), (9525, 27015), (15875, 16209)]