27984880

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{59}}^1$

素因数の和:108

約数の個数: 180

約数和(自身を含む): 84603960

約数和(自身を除く): 56619080

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 49, 55, 56, 59, 70, 77, 80, 88, 98, 110, 112, 118, 121, 140, 154, 176, 196, 220, 236, 242, 245, 280, 295, 308, 385, 392, 413, 440, 472, 484, 490, 539, 560, 590, 605, 616, 649, 770, 784, 826, 847, 880, 944, 968, 980, 1078, 1180, 1210, 1232, 1298, 1540, 1652, 1694, 1936, 1960, 2065, 2156, 2360, 2420, 2596, 2695, 2891, 3080, 3245, 3304, 3388, 3920, 4130, 4235, 4312, 4543, 4720, 4840, 5192, 5390, 5782, 5929, 6160, 6490, 6608, 6776, 7139, 8260, 8470, 8624, 9086, 9680, 10384, 10780, 11564, 11858, 12980, 13552, 14278, 14455, 16520, 16940, 18172, 21560, 22715, 23128, 23716, 25960, 28556, 28910, 29645, 31801, 33040, 33880, 35695, 36344, 43120, 45430, 46256, 47432, 49973, 51920, 57112, 57820, 59290, 63602, 67760, 71390, 72688, 90860, 94864, 99946, 114224, 115640, 118580, 127204, 142780, 159005, 181720, 199892, 231280, 237160, 249865, 254408, 285560, 318010, 349811, 363440, 399784, 474320, 499730, 508816, 571120, 636020, 699622, 799568, 999460, 1272040, 1399244, 1749055, 1998920, 2544080, 2798488, 3498110, 3997840, 5596976, 6996220, 13992440, 27984880]

約数ペア:

[(1, 27984880), (2, 13992440), (4, 6996220), (5, 5596976), (7, 3997840), (8, 3498110), (10, 2798488), (11, 2544080), (14, 1998920), (16, 1749055), (20, 1399244), (22, 1272040), (28, 999460), (35, 799568), (40, 699622), (44, 636020), (49, 571120), (55, 508816), (56, 499730), (59, 474320), (70, 399784), (77, 363440), (80, 349811), (88, 318010), (98, 285560), (110, 254408), (112, 249865), (118, 237160), (121, 231280), (140, 199892), (154, 181720), (176, 159005), (196, 142780), (220, 127204), (236, 118580), (242, 115640), (245, 114224), (280, 99946), (295, 94864), (308, 90860), (385, 72688), (392, 71390), (413, 67760), (440, 63602), (472, 59290), (484, 57820), (490, 57112), (539, 51920), (560, 49973), (590, 47432), (605, 46256), (616, 45430), (649, 43120), (770, 36344), (784, 35695), (826, 33880), (847, 33040), (880, 31801), (944, 29645), (968, 28910), (980, 28556), (1078, 25960), (1180, 23716), (1210, 23128), (1232, 22715), (1298, 21560), (1540, 18172), (1652, 16940), (1694, 16520), (1936, 14455), (1960, 14278), (2065, 13552), (2156, 12980), (2360, 11858), (2420, 11564), (2596, 10780), (2695, 10384), (2891, 9680), (3080, 9086), (3245, 8624), (3304, 8470), (3388, 8260), (3920, 7139), (4130, 6776), (4235, 6608), (4312, 6490), (4543, 6160), (4720, 5929), (4840, 5782), (5192, 5390)]