28761772

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{157}}^1\times {\mathrm{271}}^1$

素因数の和:458

約数の個数: 36

約数和(自身を含む): 55052256

約数和(自身を除く): 26290484

約数列:

[1, 2, 4, 13, 26, 52, 157, 169, 271, 314, 338, 542, 628, 676, 1084, 2041, 3523, 4082, 7046, 8164, 14092, 26533, 42547, 45799, 53066, 85094, 91598, 106132, 170188, 183196, 553111, 1106222, 2212444, 7190443, 14380886, 28761772]

約数ペア:

[(1, 28761772), (2, 14380886), (4, 7190443), (13, 2212444), (26, 1106222), (52, 553111), (157, 183196), (169, 170188), (271, 106132), (314, 91598), (338, 85094), (542, 53066), (628, 45799), (676, 42547), (1084, 26533), (2041, 14092), (3523, 8164), (4082, 7046)]