201664784

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{663371}}^1$

素因数の和:663398

約数の個数: 20

約数和(自身を含む): 411290640

約数和(自身を除く): 209625856

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 663371, 1326742, 2653484, 5306968, 10613936, 12604049, 25208098, 50416196, 100832392, 201664784]

約数ペア:

[(1, 201664784), (2, 100832392), (4, 50416196), (8, 25208098), (16, 12604049), (19, 10613936), (38, 5306968), (76, 2653484), (152, 1326742), (304, 663371)]