164956820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1178263}}^1$

素因数の和:1178279

約数の個数: 24

約数和(自身を含む): 395896704

約数和(自身を除く): 230939884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1178263, 2356526, 4713052, 5891315, 8247841, 11782630, 16495682, 23565260, 32991364, 41239205, 82478410, 164956820]

約数ペア:

[(1, 164956820), (2, 82478410), (4, 41239205), (5, 32991364), (7, 23565260), (10, 16495682), (14, 11782630), (20, 8247841), (28, 5891315), (35, 4713052), (70, 2356526), (140, 1178263)]