71821256

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{690589}}^1$

素因数の和:690608

約数の個数: 16

約数和(自身を含む): 145023900

約数和(自身を除く): 73202644

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 690589, 1381178, 2762356, 5524712, 8977657, 17955314, 35910628, 71821256]

約数ペア:

[(1, 71821256), (2, 35910628), (4, 17955314), (8, 8977657), (13, 5524712), (26, 2762356), (52, 1381178), (104, 690589)]