64339472

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{211643}}^1$

素因数の和:211670

約数の個数: 20

約数和(自身を含む): 131219280

約数和(自身を除く): 66879808

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 211643, 423286, 846572, 1693144, 3386288, 4021217, 8042434, 16084868, 32169736, 64339472]

約数ペア:

[(1, 64339472), (2, 32169736), (4, 16084868), (8, 8042434), (16, 4021217), (19, 3386288), (38, 1693144), (76, 846572), (152, 423286), (304, 211643)]