18268740

素因数分解:

$2^2\times 3^6\times 5^1\times 7^1\times {\mathrm{179}}^1$

素因数の和:213

約数の個数: 168

約数和(自身を含む): 66104640

約数和(自身を除く): 47835900

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, 179, 180, 189, 210, 243, 252, 270, 315, 324, 358, 378, 405, 420, 486, 537, 540, 567, 630, 716, 729, 756, 810, 895, 945, 972, 1074, 1134, 1215, 1253, 1260, 1458, 1611, 1620, 1701, 1790, 1890, 2148, 2268, 2430, 2506, 2685, 2835, 2916, 3222, 3402, 3580, 3645, 3759, 3780, 4833, 4860, 5012, 5103, 5370, 5670, 6265, 6444, 6804, 7290, 7518, 8055, 8505, 9666, 10206, 10740, 11277, 11340, 12530, 14499, 14580, 15036, 16110, 17010, 18795, 19332, 20412, 22554, 24165, 25060, 25515, 28998, 32220, 33831, 34020, 37590, 43497, 45108, 48330, 51030, 56385, 57996, 67662, 72495, 75180, 86994, 96660, 101493, 102060, 112770, 130491, 135324, 144990, 169155, 173988, 202986, 217485, 225540, 260982, 289980, 304479, 338310, 405972, 434970, 507465, 521964, 608958, 652455, 676620, 869940, 913437, 1014930, 1217916, 1304910, 1522395, 1826874, 2029860, 2609820, 3044790, 3653748, 4567185, 6089580, 9134370, 18268740]

約数ペア:

[(1, 18268740), (2, 9134370), (3, 6089580), (4, 4567185), (5, 3653748), (6, 3044790), (7, 2609820), (9, 2029860), (10, 1826874), (12, 1522395), (14, 1304910), (15, 1217916), (18, 1014930), (20, 913437), (21, 869940), (27, 676620), (28, 652455), (30, 608958), (35, 521964), (36, 507465), (42, 434970), (45, 405972), (54, 338310), (60, 304479), (63, 289980), (70, 260982), (81, 225540), (84, 217485), (90, 202986), (105, 173988), (108, 169155), (126, 144990), (135, 135324), (140, 130491), (162, 112770), (179, 102060), (180, 101493), (189, 96660), (210, 86994), (243, 75180), (252, 72495), (270, 67662), (315, 57996), (324, 56385), (358, 51030), (378, 48330), (405, 45108), (420, 43497), (486, 37590), (537, 34020), (540, 33831), (567, 32220), (630, 28998), (716, 25515), (729, 25060), (756, 24165), (810, 22554), (895, 20412), (945, 19332), (972, 18795), (1074, 17010), (1134, 16110), (1215, 15036), (1253, 14580), (1260, 14499), (1458, 12530), (1611, 11340), (1620, 11277), (1701, 10740), (1790, 10206), (1890, 9666), (2148, 8505), (2268, 8055), (2430, 7518), (2506, 7290), (2685, 6804), (2835, 6444), (2916, 6265), (3222, 5670), (3402, 5370), (3580, 5103), (3645, 5012), (3759, 4860), (3780, 4833)]