18903220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19289}}^1$

素因数の和:19312

約数の個数: 36

約数和(自身を含む): 46180260

約数和(自身を除く): 27277040

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 19289, 38578, 77156, 96445, 135023, 192890, 270046, 385780, 540092, 675115, 945161, 1350230, 1890322, 2700460, 3780644, 4725805, 9451610, 18903220]

約数ペア:

[(1, 18903220), (2, 9451610), (4, 4725805), (5, 3780644), (7, 2700460), (10, 1890322), (14, 1350230), (20, 945161), (28, 675115), (35, 540092), (49, 385780), (70, 270046), (98, 192890), (140, 135023), (196, 96445), (245, 77156), (490, 38578), (980, 19289)]