25436225480

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1\times {\mathrm{19483}}^1$

素因数の和:19878

約数の個数: 64

約数和(自身を含む): 57909565440

約数和(自身を除く): 32473339960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 257, 508, 514, 635, 1016, 1028, 1270, 1285, 2056, 2540, 2570, 5080, 5140, 10280, 19483, 32639, 38966, 65278, 77932, 97415, 130556, 155864, 163195, 194830, 261112, 326390, 389660, 652780, 779320, 1305560, 2474341, 4948682, 5007131, 9897364, 10014262, 12371705, 19794728, 20028524, 24743410, 25035655, 40057048, 49486820, 50071310, 98973640, 100142620, 200285240, 635905637, 1271811274, 2543622548, 3179528185, 5087245096, 6359056370, 12718112740, 25436225480]

約数ペア:

[(1, 25436225480), (2, 12718112740), (4, 6359056370), (5, 5087245096), (8, 3179528185), (10, 2543622548), (20, 1271811274), (40, 635905637), (127, 200285240), (254, 100142620), (257, 98973640), (508, 50071310), (514, 49486820), (635, 40057048), (1016, 25035655), (1028, 24743410), (1270, 20028524), (1285, 19794728), (2056, 12371705), (2540, 10014262), (2570, 9897364), (5080, 5007131), (5140, 4948682), (10280, 2474341), (19483, 1305560), (32639, 779320), (38966, 652780), (65278, 389660), (77932, 326390), (97415, 261112), (130556, 194830), (155864, 163195)]