131423768

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{487}}^1$

素因数の和:640

約数の個数: 64

約数和(自身を含む): 290457600

約数和(自身を除く): 159033832

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 79, 122, 158, 244, 316, 427, 487, 488, 553, 632, 854, 974, 1106, 1708, 1948, 2212, 3409, 3416, 3896, 4424, 4819, 6818, 9638, 13636, 19276, 27272, 29707, 33733, 38473, 38552, 59414, 67466, 76946, 118828, 134932, 153892, 207949, 237656, 269311, 269864, 307784, 415898, 538622, 831796, 1077244, 1663592, 2154488, 2346853, 4693706, 9387412, 16427971, 18774824, 32855942, 65711884, 131423768]

約数ペア:

[(1, 131423768), (2, 65711884), (4, 32855942), (7, 18774824), (8, 16427971), (14, 9387412), (28, 4693706), (56, 2346853), (61, 2154488), (79, 1663592), (122, 1077244), (158, 831796), (244, 538622), (316, 415898), (427, 307784), (487, 269864), (488, 269311), (553, 237656), (632, 207949), (854, 153892), (974, 134932), (1106, 118828), (1708, 76946), (1948, 67466), (2212, 59414), (3409, 38552), (3416, 38473), (3896, 33733), (4424, 29707), (4819, 27272), (6818, 19276), (9638, 13636)]