64438576

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{211969}}^1$

素因数の和:211996

約数の個数: 20

約数和(自身を含む): 131421400

約数和(自身を除く): 66982824

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 211969, 423938, 847876, 1695752, 3391504, 4027411, 8054822, 16109644, 32219288, 64438576]

約数ペア:

[(1, 64438576), (2, 32219288), (4, 16109644), (8, 8054822), (16, 4027411), (19, 3391504), (38, 1695752), (76, 847876), (152, 423938), (304, 211969)]