20087081920

素因数分解:

$2^6\times 5^1\times {\mathrm{43}}^1\times {\mathrm{881}}^1\times {\mathrm{1657}}^1$

素因数の和:2598

約数の個数: 112

約数和(自身を含む): 49029871968

約数和(自身を除く): 28942790048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 160, 172, 215, 320, 344, 430, 688, 860, 881, 1376, 1657, 1720, 1762, 2752, 3314, 3440, 3524, 4405, 6628, 6880, 7048, 8285, 8810, 13256, 13760, 14096, 16570, 17620, 26512, 28192, 33140, 35240, 37883, 53024, 56384, 66280, 70480, 71251, 75766, 106048, 132560, 140960, 142502, 151532, 189415, 265120, 281920, 285004, 303064, 356255, 378830, 530240, 570008, 606128, 712510, 757660, 1140016, 1212256, 1425020, 1459817, 1515320, 2280032, 2424512, 2850040, 2919634, 3030640, 4560064, 5700080, 5839268, 6061280, 7299085, 11400160, 11678536, 12122560, 14598170, 22800320, 23357072, 29196340, 46714144, 58392680, 62772131, 93428288, 116785360, 125544262, 233570720, 251088524, 313860655, 467141440, 502177048, 627721310, 1004354096, 1255442620, 2008708192, 2510885240, 4017416384, 5021770480, 10043540960, 20087081920]

約数ペア:

[(1, 20087081920), (2, 10043540960), (4, 5021770480), (5, 4017416384), (8, 2510885240), (10, 2008708192), (16, 1255442620), (20, 1004354096), (32, 627721310), (40, 502177048), (43, 467141440), (64, 313860655), (80, 251088524), (86, 233570720), (160, 125544262), (172, 116785360), (215, 93428288), (320, 62772131), (344, 58392680), (430, 46714144), (688, 29196340), (860, 23357072), (881, 22800320), (1376, 14598170), (1657, 12122560), (1720, 11678536), (1762, 11400160), (2752, 7299085), (3314, 6061280), (3440, 5839268), (3524, 5700080), (4405, 4560064), (6628, 3030640), (6880, 2919634), (7048, 2850040), (8285, 2424512), (8810, 2280032), (13256, 1515320), (13760, 1459817), (14096, 1425020), (16570, 1212256), (17620, 1140016), (26512, 757660), (28192, 712510), (33140, 606128), (35240, 570008), (37883, 530240), (53024, 378830), (56384, 356255), (66280, 303064), (70480, 285004), (71251, 281920), (75766, 265120), (106048, 189415), (132560, 151532), (140960, 142502)]