1991520

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{461}}^1$

素因数の和:485

約数の個数: 96

約数和(自身を含む): 6985440

約数和(自身を除く): 4993920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 216, 240, 270, 288, 360, 432, 461, 480, 540, 720, 864, 922, 1080, 1383, 1440, 1844, 2160, 2305, 2766, 3688, 4149, 4320, 4610, 5532, 6915, 7376, 8298, 9220, 11064, 12447, 13830, 14752, 16596, 18440, 20745, 22128, 24894, 27660, 33192, 36880, 41490, 44256, 49788, 55320, 62235, 66384, 73760, 82980, 99576, 110640, 124470, 132768, 165960, 199152, 221280, 248940, 331920, 398304, 497880, 663840, 995760, 1991520]

約数ペア:

[(1, 1991520), (2, 995760), (3, 663840), (4, 497880), (5, 398304), (6, 331920), (8, 248940), (9, 221280), (10, 199152), (12, 165960), (15, 132768), (16, 124470), (18, 110640), (20, 99576), (24, 82980), (27, 73760), (30, 66384), (32, 62235), (36, 55320), (40, 49788), (45, 44256), (48, 41490), (54, 36880), (60, 33192), (72, 27660), (80, 24894), (90, 22128), (96, 20745), (108, 18440), (120, 16596), (135, 14752), (144, 13830), (160, 12447), (180, 11064), (216, 9220), (240, 8298), (270, 7376), (288, 6915), (360, 5532), (432, 4610), (461, 4320), (480, 4149), (540, 3688), (720, 2766), (864, 2305), (922, 2160), (1080, 1844), (1383, 1440)]