19161940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19553}}^1$

素因数の和:19576

約数の個数: 36

約数和(自身を含む): 46812276

約数和(自身を除く): 27650336

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 19553, 39106, 78212, 97765, 136871, 195530, 273742, 391060, 547484, 684355, 958097, 1368710, 1916194, 2737420, 3832388, 4790485, 9580970, 19161940]

約数ペア:

[(1, 19161940), (2, 9580970), (4, 4790485), (5, 3832388), (7, 2737420), (10, 1916194), (14, 1368710), (20, 958097), (28, 684355), (35, 547484), (49, 391060), (70, 273742), (98, 195530), (140, 136871), (196, 97765), (245, 78212), (490, 39106), (980, 19553)]