81311328

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{761}}^1$

素因数の和:837

約数の個数: 144

約数和(自身を含む): 269601696

約数和(自身を除く): 188290368

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 53, 56, 63, 72, 84, 96, 106, 112, 126, 144, 159, 168, 212, 224, 252, 288, 318, 336, 371, 424, 477, 504, 636, 672, 742, 761, 848, 954, 1008, 1113, 1272, 1484, 1522, 1696, 1908, 2016, 2226, 2283, 2544, 2968, 3044, 3339, 3816, 4452, 4566, 5088, 5327, 5936, 6088, 6678, 6849, 7632, 8904, 9132, 10654, 11872, 12176, 13356, 13698, 15264, 15981, 17808, 18264, 21308, 24352, 26712, 27396, 31962, 35616, 36528, 40333, 42616, 47943, 53424, 54792, 63924, 73056, 80666, 85232, 95886, 106848, 109584, 120999, 127848, 161332, 170464, 191772, 219168, 241998, 255696, 282331, 322664, 362997, 383544, 483996, 511392, 564662, 645328, 725994, 767088, 846993, 967992, 1129324, 1290656, 1451988, 1534176, 1693986, 1935984, 2258648, 2540979, 2903976, 3387972, 3871968, 4517296, 5081958, 5807952, 6775944, 9034592, 10163916, 11615904, 13551888, 20327832, 27103776, 40655664, 81311328]

約数ペア:

[(1, 81311328), (2, 40655664), (3, 27103776), (4, 20327832), (6, 13551888), (7, 11615904), (8, 10163916), (9, 9034592), (12, 6775944), (14, 5807952), (16, 5081958), (18, 4517296), (21, 3871968), (24, 3387972), (28, 2903976), (32, 2540979), (36, 2258648), (42, 1935984), (48, 1693986), (53, 1534176), (56, 1451988), (63, 1290656), (72, 1129324), (84, 967992), (96, 846993), (106, 767088), (112, 725994), (126, 645328), (144, 564662), (159, 511392), (168, 483996), (212, 383544), (224, 362997), (252, 322664), (288, 282331), (318, 255696), (336, 241998), (371, 219168), (424, 191772), (477, 170464), (504, 161332), (636, 127848), (672, 120999), (742, 109584), (761, 106848), (848, 95886), (954, 85232), (1008, 80666), (1113, 73056), (1272, 63924), (1484, 54792), (1522, 53424), (1696, 47943), (1908, 42616), (2016, 40333), (2226, 36528), (2283, 35616), (2544, 31962), (2968, 27396), (3044, 26712), (3339, 24352), (3816, 21308), (4452, 18264), (4566, 17808), (5088, 15981), (5327, 15264), (5936, 13698), (6088, 13356), (6678, 12176), (6849, 11872), (7632, 10654), (8904, 9132)]