638975520

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{701}}^1$

素因数の和:936

約数の個数: 192

約数和(自身を含む): 2250218880

約数和(自身を除く): 1611243360

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, 211, 216, 240, 270, 288, 360, 422, 432, 480, 540, 633, 701, 720, 844, 864, 1055, 1080, 1266, 1402, 1440, 1688, 1899, 2103, 2110, 2160, 2532, 2804, 3165, 3376, 3505, 3798, 4206, 4220, 4320, 5064, 5608, 5697, 6309, 6330, 6752, 7010, 7596, 8412, 8440, 9495, 10128, 10515, 11216, 11394, 12618, 12660, 14020, 15192, 16824, 16880, 18927, 18990, 20256, 21030, 22432, 22788, 25236, 25320, 28040, 28485, 30384, 31545, 33648, 33760, 37854, 37980, 42060, 45576, 50472, 50640, 56080, 56970, 60768, 63090, 67296, 75708, 75960, 84120, 91152, 94635, 100944, 101280, 112160, 113940, 126180, 147911, 151416, 151920, 168240, 182304, 189270, 201888, 227880, 252360, 295822, 302832, 303840, 336480, 378540, 443733, 455760, 504720, 591644, 605664, 739555, 757080, 887466, 911520, 1009440, 1183288, 1331199, 1479110, 1514160, 1774932, 2218665, 2366576, 2662398, 2958220, 3028320, 3549864, 3993597, 4437330, 4733152, 5324796, 5916440, 6655995, 7099728, 7987194, 8874660, 10649592, 11832880, 13311990, 14199456, 15974388, 17749320, 19967985, 21299184, 23665760, 26623980, 31948776, 35498640, 39935970, 42598368, 53247960, 63897552, 70997280, 79871940, 106495920, 127795104, 159743880, 212991840, 319487760, 638975520]

約数ペア:

[(1, 638975520), (2, 319487760), (3, 212991840), (4, 159743880), (5, 127795104), (6, 106495920), (8, 79871940), (9, 70997280), (10, 63897552), (12, 53247960), (15, 42598368), (16, 39935970), (18, 35498640), (20, 31948776), (24, 26623980), (27, 23665760), (30, 21299184), (32, 19967985), (36, 17749320), (40, 15974388), (45, 14199456), (48, 13311990), (54, 11832880), (60, 10649592), (72, 8874660), (80, 7987194), (90, 7099728), (96, 6655995), (108, 5916440), (120, 5324796), (135, 4733152), (144, 4437330), (160, 3993597), (180, 3549864), (211, 3028320), (216, 2958220), (240, 2662398), (270, 2366576), (288, 2218665), (360, 1774932), (422, 1514160), (432, 1479110), (480, 1331199), (540, 1183288), (633, 1009440), (701, 911520), (720, 887466), (844, 757080), (864, 739555), (1055, 605664), (1080, 591644), (1266, 504720), (1402, 455760), (1440, 443733), (1688, 378540), (1899, 336480), (2103, 303840), (2110, 302832), (2160, 295822), (2532, 252360), (2804, 227880), (3165, 201888), (3376, 189270), (3505, 182304), (3798, 168240), (4206, 151920), (4220, 151416), (4320, 147911), (5064, 126180), (5608, 113940), (5697, 112160), (6309, 101280), (6330, 100944), (6752, 94635), (7010, 91152), (7596, 84120), (8412, 75960), (8440, 75708), (9495, 67296), (10128, 63090), (10515, 60768), (11216, 56970), (11394, 56080), (12618, 50640), (12660, 50472), (14020, 45576), (15192, 42060), (16824, 37980), (16880, 37854), (18927, 33760), (18990, 33648), (20256, 31545), (21030, 30384), (22432, 28485), (22788, 28040), (25236, 25320)]