20381528

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{134089}}^1$

素因数の和:134114

約数の個数: 16

約数和(自身を含む): 40227000

約数和(自身を除く): 19845472

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 134089, 268178, 536356, 1072712, 2547691, 5095382, 10190764, 20381528]

約数ペア:

[(1, 20381528), (2, 10190764), (4, 5095382), (8, 2547691), (19, 1072712), (38, 536356), (76, 268178), (152, 134089)]