56402872

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{641}}^1\times {\mathrm{647}}^1$

素因数の和:1311

約数の個数: 32

約数和(自身を含む): 112324320

約数和(自身を除く): 55921448

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 641, 647, 1282, 1294, 2564, 2588, 5128, 5176, 10897, 10999, 21794, 21998, 43588, 43996, 87176, 87992, 414727, 829454, 1658908, 3317816, 7050359, 14100718, 28201436, 56402872]

約数ペア:

[(1, 56402872), (2, 28201436), (4, 14100718), (8, 7050359), (17, 3317816), (34, 1658908), (68, 829454), (136, 414727), (641, 87992), (647, 87176), (1282, 43996), (1294, 43588), (2564, 21998), (2588, 21794), (5128, 10999), (5176, 10897)]