17804180

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{4219}}^1$

素因数の和:4439

約数の個数: 24

約数和(自身を含む): 37574880

約数和(自身を除く): 19770700

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4219, 4220, 8438, 16876, 21095, 42190, 84380, 890209, 1780418, 3560836, 4451045, 8902090, 17804180]

約数ペア:

[(1, 17804180), (2, 8902090), (4, 4451045), (5, 3560836), (10, 1780418), (20, 890209), (211, 84380), (422, 42190), (844, 21095), (1055, 16876), (2110, 8438), (4219, 4220)]