20151180

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{1777}}^1$

素因数の和:1805

約数の個数: 120

約数和(自身を含む): 72286368

約数和(自身を除く): 52135188

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 810, 945, 1134, 1260, 1620, 1777, 1890, 2268, 2835, 3554, 3780, 5331, 5670, 7108, 8885, 10662, 11340, 12439, 15993, 17770, 21324, 24878, 26655, 31986, 35540, 37317, 47979, 49756, 53310, 62195, 63972, 74634, 79965, 95958, 106620, 111951, 124390, 143937, 149268, 159930, 186585, 191916, 223902, 239895, 248780, 287874, 319860, 335853, 373170, 447804, 479790, 559755, 575748, 671706, 719685, 746340, 959580, 1007559, 1119510, 1343412, 1439370, 1679265, 2015118, 2239020, 2878740, 3358530, 4030236, 5037795, 6717060, 10075590, 20151180]

約数ペア:

[(1, 20151180), (2, 10075590), (3, 6717060), (4, 5037795), (5, 4030236), (6, 3358530), (7, 2878740), (9, 2239020), (10, 2015118), (12, 1679265), (14, 1439370), (15, 1343412), (18, 1119510), (20, 1007559), (21, 959580), (27, 746340), (28, 719685), (30, 671706), (35, 575748), (36, 559755), (42, 479790), (45, 447804), (54, 373170), (60, 335853), (63, 319860), (70, 287874), (81, 248780), (84, 239895), (90, 223902), (105, 191916), (108, 186585), (126, 159930), (135, 149268), (140, 143937), (162, 124390), (180, 111951), (189, 106620), (210, 95958), (252, 79965), (270, 74634), (315, 63972), (324, 62195), (378, 53310), (405, 49756), (420, 47979), (540, 37317), (567, 35540), (630, 31986), (756, 26655), (810, 24878), (945, 21324), (1134, 17770), (1260, 15993), (1620, 12439), (1777, 11340), (1890, 10662), (2268, 8885), (2835, 7108), (3554, 5670), (3780, 5331)]