29999920

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1$

素因数の和:302

約数の個数: 80

約数和(自身を含む): 73611360

約数和(自身を除く): 43611440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 67, 80, 116, 134, 145, 193, 232, 268, 290, 335, 386, 464, 536, 580, 670, 772, 965, 1072, 1160, 1340, 1544, 1930, 1943, 2320, 2680, 3088, 3860, 3886, 5360, 5597, 7720, 7772, 9715, 11194, 12931, 15440, 15544, 19430, 22388, 25862, 27985, 31088, 38860, 44776, 51724, 55970, 64655, 77720, 89552, 103448, 111940, 129310, 155440, 206896, 223880, 258620, 374999, 447760, 517240, 749998, 1034480, 1499996, 1874995, 2999992, 3749990, 5999984, 7499980, 14999960, 29999920]

約数ペア:

[(1, 29999920), (2, 14999960), (4, 7499980), (5, 5999984), (8, 3749990), (10, 2999992), (16, 1874995), (20, 1499996), (29, 1034480), (40, 749998), (58, 517240), (67, 447760), (80, 374999), (116, 258620), (134, 223880), (145, 206896), (193, 155440), (232, 129310), (268, 111940), (290, 103448), (335, 89552), (386, 77720), (464, 64655), (536, 55970), (580, 51724), (670, 44776), (772, 38860), (965, 31088), (1072, 27985), (1160, 25862), (1340, 22388), (1544, 19430), (1930, 15544), (1943, 15440), (2320, 12931), (2680, 11194), (3088, 9715), (3860, 7772), (3886, 7720), (5360, 5597)]