278414480

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{409}}^1$

素因数の和:616

約数の個数: 80

約数和(自身を含む): 663767040

約数和(自身を除く): 385352560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 127, 134, 254, 268, 335, 409, 508, 536, 635, 670, 818, 1016, 1072, 1270, 1340, 1636, 2032, 2045, 2540, 2680, 3272, 4090, 5080, 5360, 6544, 8180, 8509, 10160, 16360, 17018, 27403, 32720, 34036, 42545, 51943, 54806, 68072, 85090, 103886, 109612, 136144, 137015, 170180, 207772, 219224, 259715, 274030, 340360, 415544, 438448, 519430, 548060, 680720, 831088, 1038860, 1096120, 2077720, 2192240, 3480181, 4155440, 6960362, 13920724, 17400905, 27841448, 34801810, 55682896, 69603620, 139207240, 278414480]

約数ペア:

[(1, 278414480), (2, 139207240), (4, 69603620), (5, 55682896), (8, 34801810), (10, 27841448), (16, 17400905), (20, 13920724), (40, 6960362), (67, 4155440), (80, 3480181), (127, 2192240), (134, 2077720), (254, 1096120), (268, 1038860), (335, 831088), (409, 680720), (508, 548060), (536, 519430), (635, 438448), (670, 415544), (818, 340360), (1016, 274030), (1072, 259715), (1270, 219224), (1340, 207772), (1636, 170180), (2032, 137015), (2045, 136144), (2540, 109612), (2680, 103886), (3272, 85090), (4090, 68072), (5080, 54806), (5360, 51943), (6544, 42545), (8180, 34036), (8509, 32720), (10160, 27403), (16360, 17018)]