20138760

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{643}}^1$

素因数の和:692

約数の個数: 128

約数和(自身を含む): 69552000

約数和(自身を除く): 49413240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 29, 30, 36, 40, 45, 54, 58, 60, 72, 87, 90, 108, 116, 120, 135, 145, 174, 180, 216, 232, 261, 270, 290, 348, 360, 435, 522, 540, 580, 643, 696, 783, 870, 1044, 1080, 1160, 1286, 1305, 1566, 1740, 1929, 2088, 2572, 2610, 3132, 3215, 3480, 3858, 3915, 5144, 5220, 5787, 6264, 6430, 7716, 7830, 9645, 10440, 11574, 12860, 15432, 15660, 17361, 18647, 19290, 23148, 25720, 28935, 31320, 34722, 37294, 38580, 46296, 55941, 57870, 69444, 74588, 77160, 86805, 93235, 111882, 115740, 138888, 149176, 167823, 173610, 186470, 223764, 231480, 279705, 335646, 347220, 372940, 447528, 503469, 559410, 671292, 694440, 745880, 839115, 1006938, 1118820, 1342584, 1678230, 2013876, 2237640, 2517345, 3356460, 4027752, 5034690, 6712920, 10069380, 20138760]

約数ペア:

[(1, 20138760), (2, 10069380), (3, 6712920), (4, 5034690), (5, 4027752), (6, 3356460), (8, 2517345), (9, 2237640), (10, 2013876), (12, 1678230), (15, 1342584), (18, 1118820), (20, 1006938), (24, 839115), (27, 745880), (29, 694440), (30, 671292), (36, 559410), (40, 503469), (45, 447528), (54, 372940), (58, 347220), (60, 335646), (72, 279705), (87, 231480), (90, 223764), (108, 186470), (116, 173610), (120, 167823), (135, 149176), (145, 138888), (174, 115740), (180, 111882), (216, 93235), (232, 86805), (261, 77160), (270, 74588), (290, 69444), (348, 57870), (360, 55941), (435, 46296), (522, 38580), (540, 37294), (580, 34722), (643, 31320), (696, 28935), (783, 25720), (870, 23148), (1044, 19290), (1080, 18647), (1160, 17361), (1286, 15660), (1305, 15432), (1566, 12860), (1740, 11574), (1929, 10440), (2088, 9645), (2572, 7830), (2610, 7716), (3132, 6430), (3215, 6264), (3480, 5787), (3858, 5220), (3915, 5144)]