172904180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{455011}}^1$

素因数の和:455039

約数の個数: 24

約数和(自身を含む): 382210080

約数和(自身を除く): 209305900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 455011, 910022, 1820044, 2275055, 4550110, 8645209, 9100220, 17290418, 34580836, 43226045, 86452090, 172904180]

約数ペア:

[(1, 172904180), (2, 86452090), (4, 43226045), (5, 34580836), (10, 17290418), (19, 9100220), (20, 8645209), (38, 4550110), (76, 2275055), (95, 1820044), (190, 910022), (380, 455011)]