256156782

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:294

約数の個数: 128

約数和(自身を含む): 652935168

約数和(自身を除く): 396778386

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 31, 34, 42, 51, 62, 71, 93, 102, 119, 142, 163, 186, 213, 217, 238, 326, 357, 426, 434, 489, 497, 527, 651, 714, 978, 994, 1054, 1141, 1207, 1302, 1491, 1581, 2201, 2282, 2414, 2771, 2982, 3162, 3423, 3621, 3689, 4402, 5053, 5542, 6603, 6846, 7242, 7378, 8313, 8449, 10106, 11067, 11573, 13206, 15159, 15407, 16626, 16898, 19397, 22134, 23146, 25347, 30318, 30814, 34719, 35371, 37417, 38794, 46221, 50694, 58191, 69438, 70742, 74834, 81011, 85901, 92442, 106113, 112251, 116382, 162022, 171802, 196741, 212226, 224502, 243033, 257703, 261919, 358763, 393482, 486066, 515406, 523838, 590223, 601307, 717526, 785757, 1076289, 1180446, 1202614, 1377187, 1571514, 1803921, 2152578, 2511341, 2754374, 3607842, 4131561, 5022682, 6098971, 7534023, 8263122, 12197942, 15068046, 18296913, 36593826, 42692797, 85385594, 128078391, 256156782]

約数ペア:

[(1, 256156782), (2, 128078391), (3, 85385594), (6, 42692797), (7, 36593826), (14, 18296913), (17, 15068046), (21, 12197942), (31, 8263122), (34, 7534023), (42, 6098971), (51, 5022682), (62, 4131561), (71, 3607842), (93, 2754374), (102, 2511341), (119, 2152578), (142, 1803921), (163, 1571514), (186, 1377187), (213, 1202614), (217, 1180446), (238, 1076289), (326, 785757), (357, 717526), (426, 601307), (434, 590223), (489, 523838), (497, 515406), (527, 486066), (651, 393482), (714, 358763), (978, 261919), (994, 257703), (1054, 243033), (1141, 224502), (1207, 212226), (1302, 196741), (1491, 171802), (1581, 162022), (2201, 116382), (2282, 112251), (2414, 106113), (2771, 92442), (2982, 85901), (3162, 81011), (3423, 74834), (3621, 70742), (3689, 69438), (4402, 58191), (5053, 50694), (5542, 46221), (6603, 38794), (6846, 37417), (7242, 35371), (7378, 34719), (8313, 30814), (8449, 30318), (10106, 25347), (11067, 23146), (11573, 22134), (13206, 19397), (15159, 16898), (15407, 16626)]