20558048

素因数分解:

$2^5\times 7^3\times {\mathrm{1873}}^1$

素因数の和:1904

約数の個数: 48

約数和(自身を含む): 47224800

約数和(自身を除く): 26666752

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 343, 392, 686, 784, 1372, 1568, 1873, 2744, 3746, 5488, 7492, 10976, 13111, 14984, 26222, 29968, 52444, 59936, 91777, 104888, 183554, 209776, 367108, 419552, 642439, 734216, 1284878, 1468432, 2569756, 2936864, 5139512, 10279024, 20558048]

約数ペア:

[(1, 20558048), (2, 10279024), (4, 5139512), (7, 2936864), (8, 2569756), (14, 1468432), (16, 1284878), (28, 734216), (32, 642439), (49, 419552), (56, 367108), (98, 209776), (112, 183554), (196, 104888), (224, 91777), (343, 59936), (392, 52444), (686, 29968), (784, 26222), (1372, 14984), (1568, 13111), (1873, 10976), (2744, 7492), (3746, 5488)]