20880160

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{181}}^1$

素因数の和:306

約数の個数: 96

約数和(自身を含む): 57238272

約数和(自身を除く): 36358112

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 103, 112, 140, 160, 181, 206, 224, 280, 362, 412, 515, 560, 721, 724, 824, 905, 1030, 1120, 1267, 1442, 1448, 1648, 1810, 2060, 2534, 2884, 2896, 3296, 3605, 3620, 4120, 5068, 5768, 5792, 6335, 7210, 7240, 8240, 10136, 11536, 12670, 14420, 14480, 16480, 18643, 20272, 23072, 25340, 28840, 28960, 37286, 40544, 50680, 57680, 74572, 93215, 101360, 115360, 130501, 149144, 186430, 202720, 261002, 298288, 372860, 522004, 596576, 652505, 745720, 1044008, 1305010, 1491440, 2088016, 2610020, 2982880, 4176032, 5220040, 10440080, 20880160]

約数ペア:

[(1, 20880160), (2, 10440080), (4, 5220040), (5, 4176032), (7, 2982880), (8, 2610020), (10, 2088016), (14, 1491440), (16, 1305010), (20, 1044008), (28, 745720), (32, 652505), (35, 596576), (40, 522004), (56, 372860), (70, 298288), (80, 261002), (103, 202720), (112, 186430), (140, 149144), (160, 130501), (181, 115360), (206, 101360), (224, 93215), (280, 74572), (362, 57680), (412, 50680), (515, 40544), (560, 37286), (721, 28960), (724, 28840), (824, 25340), (905, 23072), (1030, 20272), (1120, 18643), (1267, 16480), (1442, 14480), (1448, 14420), (1648, 12670), (1810, 11536), (2060, 10136), (2534, 8240), (2884, 7240), (2896, 7210), (3296, 6335), (3605, 5792), (3620, 5768), (4120, 5068)]