81791856

素因数分解:

$2^4\times 3^5\times {\mathrm{109}}^1\times {\mathrm{193}}^1$

素因数の和:325

約数の個数: 120

約数和(自身を含む): 240800560

約数和(自身を除く): 159008704

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 81, 108, 109, 144, 162, 193, 216, 218, 243, 324, 327, 386, 432, 436, 486, 579, 648, 654, 772, 872, 972, 981, 1158, 1296, 1308, 1544, 1737, 1744, 1944, 1962, 2316, 2616, 2943, 3088, 3474, 3888, 3924, 4632, 5211, 5232, 5886, 6948, 7848, 8829, 9264, 10422, 11772, 13896, 15633, 15696, 17658, 20844, 21037, 23544, 26487, 27792, 31266, 35316, 41688, 42074, 46899, 47088, 52974, 62532, 63111, 70632, 83376, 84148, 93798, 105948, 125064, 126222, 141264, 168296, 187596, 189333, 211896, 250128, 252444, 336592, 375192, 378666, 423792, 504888, 567999, 750384, 757332, 1009776, 1135998, 1514664, 1703997, 2271996, 3029328, 3407994, 4543992, 5111991, 6815988, 9087984, 10223982, 13631976, 20447964, 27263952, 40895928, 81791856]

約数ペア:

[(1, 81791856), (2, 40895928), (3, 27263952), (4, 20447964), (6, 13631976), (8, 10223982), (9, 9087984), (12, 6815988), (16, 5111991), (18, 4543992), (24, 3407994), (27, 3029328), (36, 2271996), (48, 1703997), (54, 1514664), (72, 1135998), (81, 1009776), (108, 757332), (109, 750384), (144, 567999), (162, 504888), (193, 423792), (216, 378666), (218, 375192), (243, 336592), (324, 252444), (327, 250128), (386, 211896), (432, 189333), (436, 187596), (486, 168296), (579, 141264), (648, 126222), (654, 125064), (772, 105948), (872, 93798), (972, 84148), (981, 83376), (1158, 70632), (1296, 63111), (1308, 62532), (1544, 52974), (1737, 47088), (1744, 46899), (1944, 42074), (1962, 41688), (2316, 35316), (2616, 31266), (2943, 27792), (3088, 26487), (3474, 23544), (3888, 21037), (3924, 20844), (4632, 17658), (5211, 15696), (5232, 15633), (5886, 13896), (6948, 11772), (7848, 10422), (8829, 9264)]