19090840

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1723}}^1$

素因数の和:2011

約数の個数: 32

約数和(自身を含む): 43134480

約数和(自身を除く): 24043640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 554, 1108, 1385, 1723, 2216, 2770, 3446, 5540, 6892, 8615, 11080, 13784, 17230, 34460, 68920, 477271, 954542, 1909084, 2386355, 3818168, 4772710, 9545420, 19090840]

約数ペア:

[(1, 19090840), (2, 9545420), (4, 4772710), (5, 3818168), (8, 2386355), (10, 1909084), (20, 954542), (40, 477271), (277, 68920), (554, 34460), (1108, 17230), (1385, 13784), (1723, 11080), (2216, 8615), (2770, 6892), (3446, 5540)]