25421680

素因数分解:

$2^4\times 5^1\times {\mathrm{317771}}^1$

素因数の和:317784

約数の個数: 20

約数和(自身を含む): 59105592

約数和(自身を除く): 33683912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 317771, 635542, 1271084, 1588855, 2542168, 3177710, 5084336, 6355420, 12710840, 25421680]

約数ペア:

[(1, 25421680), (2, 12710840), (4, 6355420), (5, 5084336), (8, 3177710), (10, 2542168), (16, 1588855), (20, 1271084), (40, 635542), (80, 317771)]