20147680

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{17989}}^1$

素因数の和:18011

約数の個数: 48

約数和(自身を含む): 54401760

約数和(自身を除く): 34254080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 17989, 35978, 71956, 89945, 125923, 143912, 179890, 251846, 287824, 359780, 503692, 575648, 629615, 719560, 1007384, 1259230, 1439120, 2014768, 2518460, 2878240, 4029536, 5036920, 10073840, 20147680]

約数ペア:

[(1, 20147680), (2, 10073840), (4, 5036920), (5, 4029536), (7, 2878240), (8, 2518460), (10, 2014768), (14, 1439120), (16, 1259230), (20, 1007384), (28, 719560), (32, 629615), (35, 575648), (40, 503692), (56, 359780), (70, 287824), (80, 251846), (112, 179890), (140, 143912), (160, 125923), (224, 89945), (280, 71956), (560, 35978), (1120, 17989)]