81520784

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{251}}^1\times {\mathrm{383}}^1$

素因数の和:695

約数の個数: 40

約数和(自身を含む): 161989632

約数和(自身を除く): 80468848

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 251, 383, 424, 502, 766, 848, 1004, 1532, 2008, 3064, 4016, 6128, 13303, 20299, 26606, 40598, 53212, 81196, 96133, 106424, 162392, 192266, 212848, 324784, 384532, 769064, 1538128, 5095049, 10190098, 20380196, 40760392, 81520784]

約数ペア:

[(1, 81520784), (2, 40760392), (4, 20380196), (8, 10190098), (16, 5095049), (53, 1538128), (106, 769064), (212, 384532), (251, 324784), (383, 212848), (424, 192266), (502, 162392), (766, 106424), (848, 96133), (1004, 81196), (1532, 53212), (2008, 40598), (3064, 26606), (4016, 20299), (6128, 13303)]