80671780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{576227}}^1$

素因数の和:576243

約数の個数: 24

約数和(自身を含む): 193612608

約数和(自身を除く): 112940828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 576227, 1152454, 2304908, 2881135, 4033589, 5762270, 8067178, 11524540, 16134356, 20167945, 40335890, 80671780]

約数ペア:

[(1, 80671780), (2, 40335890), (4, 20167945), (5, 16134356), (7, 11524540), (10, 8067178), (14, 5762270), (20, 4033589), (28, 2881135), (35, 2304908), (70, 1152454), (140, 576227)]