257371088

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{9743}}^1$

素因数の和:9891

約数の個数: 40

約数和(自身を含む): 541298688

約数和(自身を除く): 283927600

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 127, 208, 254, 508, 1016, 1651, 2032, 3302, 6604, 9743, 13208, 19486, 26416, 38972, 77944, 126659, 155888, 253318, 506636, 1013272, 1237361, 2026544, 2474722, 4949444, 9898888, 16085693, 19797776, 32171386, 64342772, 128685544, 257371088]

約数ペア:

[(1, 257371088), (2, 128685544), (4, 64342772), (8, 32171386), (13, 19797776), (16, 16085693), (26, 9898888), (52, 4949444), (104, 2474722), (127, 2026544), (208, 1237361), (254, 1013272), (508, 506636), (1016, 253318), (1651, 155888), (2032, 126659), (3302, 77944), (6604, 38972), (9743, 26416), (13208, 19486)]