20148640

素因数分解:

$2^5\times 5^1\times {\mathrm{125929}}^1$

素因数の和:125944

約数の個数: 24

約数和(自身を含む): 47601540

約数和(自身を除く): 27452900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 125929, 251858, 503716, 629645, 1007432, 1259290, 2014864, 2518580, 4029728, 5037160, 10074320, 20148640]

約数ペア:

[(1, 20148640), (2, 10074320), (4, 5037160), (5, 4029728), (8, 2518580), (10, 2014864), (16, 1259290), (20, 1007432), (32, 629645), (40, 503716), (80, 251858), (160, 125929)]