81713880

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2609}}^1$

素因数の和:2658

約数の個数: 128

約数和(自身を含む): 281880000

約数和(自身を除く): 200166120

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, 696, 783, 870, 1044, 1080, 1160, 1305, 1566, 1740, 2088, 2609, 2610, 3132, 3480, 3915, 5218, 5220, 6264, 7827, 7830, 10436, 10440, 13045, 15654, 15660, 20872, 23481, 26090, 31308, 31320, 39135, 46962, 52180, 62616, 70443, 75661, 78270, 93924, 104360, 117405, 140886, 151322, 156540, 187848, 226983, 234810, 281772, 302644, 313080, 352215, 378305, 453966, 469620, 563544, 605288, 680949, 704430, 756610, 907932, 939240, 1134915, 1361898, 1408860, 1513220, 1815864, 2042847, 2269830, 2723796, 2817720, 3026440, 3404745, 4085694, 4539660, 5447592, 6809490, 8171388, 9079320, 10214235, 13618980, 16342776, 20428470, 27237960, 40856940, 81713880]

約数ペア:

[(1, 81713880), (2, 40856940), (3, 27237960), (4, 20428470), (5, 16342776), (6, 13618980), (8, 10214235), (9, 9079320), (10, 8171388), (12, 6809490), (15, 5447592), (18, 4539660), (20, 4085694), (24, 3404745), (27, 3026440), (29, 2817720), (30, 2723796), (36, 2269830), (40, 2042847), (45, 1815864), (54, 1513220), (58, 1408860), (60, 1361898), (72, 1134915), (87, 939240), (90, 907932), (108, 756610), (116, 704430), (120, 680949), (135, 605288), (145, 563544), (174, 469620), (180, 453966), (216, 378305), (232, 352215), (261, 313080), (270, 302644), (290, 281772), (348, 234810), (360, 226983), (435, 187848), (522, 156540), (540, 151322), (580, 140886), (696, 117405), (783, 104360), (870, 93924), (1044, 78270), (1080, 75661), (1160, 70443), (1305, 62616), (1566, 52180), (1740, 46962), (2088, 39135), (2609, 31320), (2610, 31308), (3132, 26090), (3480, 23481), (3915, 20872), (5218, 15660), (5220, 15654), (6264, 13045), (7827, 10440), (7830, 10436)]