15221520

素因数分解:

$2^4\times 3^8\times 5^1\times {\mathrm{29}}^1$

素因数の和:66

約数の個数: 180

約数和(自身を含む): 54912780

約数和(自身を除く): 39691260

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 29, 30, 36, 40, 45, 48, 54, 58, 60, 72, 80, 81, 87, 90, 108, 116, 120, 135, 144, 145, 162, 174, 180, 216, 232, 240, 243, 261, 270, 290, 324, 348, 360, 405, 432, 435, 464, 486, 522, 540, 580, 648, 696, 720, 729, 783, 810, 870, 972, 1044, 1080, 1160, 1215, 1296, 1305, 1392, 1458, 1566, 1620, 1740, 1944, 2088, 2160, 2187, 2320, 2349, 2430, 2610, 2916, 3132, 3240, 3480, 3645, 3888, 3915, 4176, 4374, 4698, 4860, 5220, 5832, 6264, 6480, 6561, 6960, 7047, 7290, 7830, 8748, 9396, 9720, 10440, 10935, 11664, 11745, 12528, 13122, 14094, 14580, 15660, 17496, 18792, 19440, 20880, 21141, 21870, 23490, 26244, 28188, 29160, 31320, 32805, 34992, 35235, 37584, 42282, 43740, 46980, 52488, 56376, 58320, 62640, 63423, 65610, 70470, 84564, 87480, 93960, 104976, 105705, 112752, 126846, 131220, 140940, 169128, 174960, 187920, 190269, 211410, 253692, 262440, 281880, 317115, 338256, 380538, 422820, 507384, 524880, 563760, 634230, 761076, 845640, 951345, 1014768, 1268460, 1522152, 1691280, 1902690, 2536920, 3044304, 3805380, 5073840, 7610760, 15221520]

約数ペア:

[(1, 15221520), (2, 7610760), (3, 5073840), (4, 3805380), (5, 3044304), (6, 2536920), (8, 1902690), (9, 1691280), (10, 1522152), (12, 1268460), (15, 1014768), (16, 951345), (18, 845640), (20, 761076), (24, 634230), (27, 563760), (29, 524880), (30, 507384), (36, 422820), (40, 380538), (45, 338256), (48, 317115), (54, 281880), (58, 262440), (60, 253692), (72, 211410), (80, 190269), (81, 187920), (87, 174960), (90, 169128), (108, 140940), (116, 131220), (120, 126846), (135, 112752), (144, 105705), (145, 104976), (162, 93960), (174, 87480), (180, 84564), (216, 70470), (232, 65610), (240, 63423), (243, 62640), (261, 58320), (270, 56376), (290, 52488), (324, 46980), (348, 43740), (360, 42282), (405, 37584), (432, 35235), (435, 34992), (464, 32805), (486, 31320), (522, 29160), (540, 28188), (580, 26244), (648, 23490), (696, 21870), (720, 21141), (729, 20880), (783, 19440), (810, 18792), (870, 17496), (972, 15660), (1044, 14580), (1080, 14094), (1160, 13122), (1215, 12528), (1296, 11745), (1305, 11664), (1392, 10935), (1458, 10440), (1566, 9720), (1620, 9396), (1740, 8748), (1944, 7830), (2088, 7290), (2160, 7047), (2187, 6960), (2320, 6561), (2349, 6480), (2430, 6264), (2610, 5832), (2916, 5220), (3132, 4860), (3240, 4698), (3480, 4374), (3645, 4176), (3888, 3915)]