128676784

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{259429}}^1$

素因数の和:259468

約数の個数: 20

約数和(自身を含む): 257354560

約数和(自身を除く): 128677776

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 259429, 518858, 1037716, 2075432, 4150864, 8042299, 16084598, 32169196, 64338392, 128676784]

約数ペア:

[(1, 128676784), (2, 64338392), (4, 32169196), (8, 16084598), (16, 8042299), (31, 4150864), (62, 2075432), (124, 1037716), (248, 518858), (496, 259429)]