27878140

素因数分解:

$2^2\times 5^1\times {\mathrm{809}}^1\times {\mathrm{1723}}^1$

素因数の和:2541

約数の個数: 24

約数和(自身を含む): 58650480

約数和(自身を除く): 30772340

約数列:

[1, 2, 4, 5, 10, 20, 809, 1618, 1723, 3236, 3446, 4045, 6892, 8090, 8615, 16180, 17230, 34460, 1393907, 2787814, 5575628, 6969535, 13939070, 27878140]

約数ペア:

[(1, 27878140), (2, 13939070), (4, 6969535), (5, 5575628), (10, 2787814), (20, 1393907), (809, 34460), (1618, 17230), (1723, 16180), (3236, 8615), (3446, 8090), (4045, 6892)]