81758880

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{8111}}^1$

素因数の和:8139

約数の個数: 144

約数和(自身を含む): 318898944

約数和(自身を除く): 237140064

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 3360, 5040, 8111, 10080, 16222, 24333, 32444, 40555, 48666, 56777, 64888, 72999, 81110, 97332, 113554, 121665, 129776, 145998, 162220, 170331, 194664, 227108, 243330, 259552, 283885, 291996, 324440, 340662, 364995, 389328, 454216, 486660, 510993, 567770, 583992, 648880, 681324, 729990, 778656, 851655, 908432, 973320, 1021986, 1135540, 1167984, 1297760, 1362648, 1459980, 1703310, 1816864, 1946640, 2043972, 2271080, 2335968, 2554965, 2725296, 2919960, 3406620, 3893280, 4087944, 4542160, 5109930, 5450592, 5839920, 6813240, 8175888, 9084320, 10219860, 11679840, 13626480, 16351776, 20439720, 27252960, 40879440, 81758880]

約数ペア:

[(1, 81758880), (2, 40879440), (3, 27252960), (4, 20439720), (5, 16351776), (6, 13626480), (7, 11679840), (8, 10219860), (9, 9084320), (10, 8175888), (12, 6813240), (14, 5839920), (15, 5450592), (16, 5109930), (18, 4542160), (20, 4087944), (21, 3893280), (24, 3406620), (28, 2919960), (30, 2725296), (32, 2554965), (35, 2335968), (36, 2271080), (40, 2043972), (42, 1946640), (45, 1816864), (48, 1703310), (56, 1459980), (60, 1362648), (63, 1297760), (70, 1167984), (72, 1135540), (80, 1021986), (84, 973320), (90, 908432), (96, 851655), (105, 778656), (112, 729990), (120, 681324), (126, 648880), (140, 583992), (144, 567770), (160, 510993), (168, 486660), (180, 454216), (210, 389328), (224, 364995), (240, 340662), (252, 324440), (280, 291996), (288, 283885), (315, 259552), (336, 243330), (360, 227108), (420, 194664), (480, 170331), (504, 162220), (560, 145998), (630, 129776), (672, 121665), (720, 113554), (840, 97332), (1008, 81110), (1120, 72999), (1260, 64888), (1440, 56777), (1680, 48666), (2016, 40555), (2520, 32444), (3360, 24333), (5040, 16222), (8111, 10080)]