20337120

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{487}}^1$

素因数の和:537

約数の個数: 144

約数和(自身を含む): 71940960

約数和(自身を除く): 51603840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 32, 36, 40, 45, 48, 58, 60, 72, 80, 87, 90, 96, 116, 120, 144, 145, 160, 174, 180, 232, 240, 261, 288, 290, 348, 360, 435, 464, 480, 487, 522, 580, 696, 720, 870, 928, 974, 1044, 1160, 1305, 1392, 1440, 1461, 1740, 1948, 2088, 2320, 2435, 2610, 2784, 2922, 3480, 3896, 4176, 4383, 4640, 4870, 5220, 5844, 6960, 7305, 7792, 8352, 8766, 9740, 10440, 11688, 13920, 14123, 14610, 15584, 17532, 19480, 20880, 21915, 23376, 28246, 29220, 35064, 38960, 41760, 42369, 43830, 46752, 56492, 58440, 70128, 70615, 77920, 84738, 87660, 112984, 116880, 127107, 140256, 141230, 169476, 175320, 211845, 225968, 233760, 254214, 282460, 338952, 350640, 423690, 451936, 508428, 564920, 635535, 677904, 701280, 847380, 1016856, 1129840, 1271070, 1355808, 1694760, 2033712, 2259680, 2542140, 3389520, 4067424, 5084280, 6779040, 10168560, 20337120]

約数ペア:

[(1, 20337120), (2, 10168560), (3, 6779040), (4, 5084280), (5, 4067424), (6, 3389520), (8, 2542140), (9, 2259680), (10, 2033712), (12, 1694760), (15, 1355808), (16, 1271070), (18, 1129840), (20, 1016856), (24, 847380), (29, 701280), (30, 677904), (32, 635535), (36, 564920), (40, 508428), (45, 451936), (48, 423690), (58, 350640), (60, 338952), (72, 282460), (80, 254214), (87, 233760), (90, 225968), (96, 211845), (116, 175320), (120, 169476), (144, 141230), (145, 140256), (160, 127107), (174, 116880), (180, 112984), (232, 87660), (240, 84738), (261, 77920), (288, 70615), (290, 70128), (348, 58440), (360, 56492), (435, 46752), (464, 43830), (480, 42369), (487, 41760), (522, 38960), (580, 35064), (696, 29220), (720, 28246), (870, 23376), (928, 21915), (974, 20880), (1044, 19480), (1160, 17532), (1305, 15584), (1392, 14610), (1440, 14123), (1461, 13920), (1740, 11688), (1948, 10440), (2088, 9740), (2320, 8766), (2435, 8352), (2610, 7792), (2784, 7305), (2922, 6960), (3480, 5844), (3896, 5220), (4176, 4870), (4383, 4640)]