20279168

素因数分解:

$2^7\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1741}}^1$

素因数の和:1775

約数の個数: 64

約数和(自身を含む): 49751520

約数和(自身を除く): 29472352

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 128, 182, 208, 224, 364, 416, 448, 728, 832, 896, 1456, 1664, 1741, 2912, 3482, 5824, 6964, 11648, 12187, 13928, 22633, 24374, 27856, 45266, 48748, 55712, 90532, 97496, 111424, 158431, 181064, 194992, 222848, 316862, 362128, 389984, 633724, 724256, 779968, 1267448, 1448512, 1559936, 2534896, 2897024, 5069792, 10139584, 20279168]

約数ペア:

[(1, 20279168), (2, 10139584), (4, 5069792), (7, 2897024), (8, 2534896), (13, 1559936), (14, 1448512), (16, 1267448), (26, 779968), (28, 724256), (32, 633724), (52, 389984), (56, 362128), (64, 316862), (91, 222848), (104, 194992), (112, 181064), (128, 158431), (182, 111424), (208, 97496), (224, 90532), (364, 55712), (416, 48748), (448, 45266), (728, 27856), (832, 24374), (896, 22633), (1456, 13928), (1664, 12187), (1741, 11648), (2912, 6964), (3482, 5824)]