20540128

素因数分解:

$2^5\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1951}}^1$

素因数の和:2015

約数の個数: 48

約数和(自身を含む): 47222784

約数和(自身を除く): 26682656

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 56, 94, 112, 188, 224, 329, 376, 658, 752, 1316, 1504, 1951, 2632, 3902, 5264, 7804, 10528, 13657, 15608, 27314, 31216, 54628, 62432, 91697, 109256, 183394, 218512, 366788, 437024, 641879, 733576, 1283758, 1467152, 2567516, 2934304, 5135032, 10270064, 20540128]

約数ペア:

[(1, 20540128), (2, 10270064), (4, 5135032), (7, 2934304), (8, 2567516), (14, 1467152), (16, 1283758), (28, 733576), (32, 641879), (47, 437024), (56, 366788), (94, 218512), (112, 183394), (188, 109256), (224, 91697), (329, 62432), (376, 54628), (658, 31216), (752, 27314), (1316, 15608), (1504, 13657), (1951, 10528), (2632, 7804), (3902, 5264)]