78128764

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{64891}}^1$

素因数の和:64945

約数の個数: 24

約数和(自身を含む): 159893888

約数和(自身を除く): 81765124

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 64891, 129782, 259564, 454237, 908474, 1816948, 2790313, 5580626, 11161252, 19532191, 39064382, 78128764]

約数ペア:

[(1, 78128764), (2, 39064382), (4, 19532191), (7, 11161252), (14, 5580626), (28, 2790313), (43, 1816948), (86, 908474), (172, 454237), (301, 259564), (602, 129782), (1204, 64891)]