81391716

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2111}}^1$

素因数の和:2151

約数の個数: 120

約数和(自身を含む): 257596416

約数和(自身を除く): 176204700

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 27, 28, 34, 36, 42, 51, 54, 63, 68, 81, 84, 102, 108, 119, 126, 153, 162, 189, 204, 238, 252, 306, 324, 357, 378, 459, 476, 567, 612, 714, 756, 918, 1071, 1134, 1377, 1428, 1836, 2111, 2142, 2268, 2754, 3213, 4222, 4284, 5508, 6333, 6426, 8444, 9639, 12666, 12852, 14777, 18999, 19278, 25332, 29554, 35887, 37998, 38556, 44331, 56997, 59108, 71774, 75996, 88662, 107661, 113994, 132993, 143548, 170991, 177324, 215322, 227988, 251209, 265986, 322983, 341982, 398979, 430644, 502418, 531972, 645966, 683964, 753627, 797958, 968949, 1004836, 1196937, 1291932, 1507254, 1595916, 1937898, 2260881, 2393874, 2906847, 3014508, 3875796, 4521762, 4787748, 5813694, 6782643, 9043524, 11627388, 13565286, 20347929, 27130572, 40695858, 81391716]

約数ペア:

[(1, 81391716), (2, 40695858), (3, 27130572), (4, 20347929), (6, 13565286), (7, 11627388), (9, 9043524), (12, 6782643), (14, 5813694), (17, 4787748), (18, 4521762), (21, 3875796), (27, 3014508), (28, 2906847), (34, 2393874), (36, 2260881), (42, 1937898), (51, 1595916), (54, 1507254), (63, 1291932), (68, 1196937), (81, 1004836), (84, 968949), (102, 797958), (108, 753627), (119, 683964), (126, 645966), (153, 531972), (162, 502418), (189, 430644), (204, 398979), (238, 341982), (252, 322983), (306, 265986), (324, 251209), (357, 227988), (378, 215322), (459, 177324), (476, 170991), (567, 143548), (612, 132993), (714, 113994), (756, 107661), (918, 88662), (1071, 75996), (1134, 71774), (1377, 59108), (1428, 56997), (1836, 44331), (2111, 38556), (2142, 37998), (2268, 35887), (2754, 29554), (3213, 25332), (4222, 19278), (4284, 18999), (5508, 14777), (6333, 12852), (6426, 12666), (8444, 9639)]