20498128

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{6311}}^1$

素因数の和:6355

約数の個数: 40

約数和(自身を含む): 46961280

約数和(自身を除く): 26463152

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 56, 58, 112, 116, 203, 232, 406, 464, 812, 1624, 3248, 6311, 12622, 25244, 44177, 50488, 88354, 100976, 176708, 183019, 353416, 366038, 706832, 732076, 1281133, 1464152, 2562266, 2928304, 5124532, 10249064, 20498128]

約数ペア:

[(1, 20498128), (2, 10249064), (4, 5124532), (7, 2928304), (8, 2562266), (14, 1464152), (16, 1281133), (28, 732076), (29, 706832), (56, 366038), (58, 353416), (112, 183019), (116, 176708), (203, 100976), (232, 88354), (406, 50488), (464, 44177), (812, 25244), (1624, 12622), (3248, 6311)]