202111312

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{1979}}^1$

素因数の和:2491

約数の個数: 40

約数和(自身を含む): 422785440

約数和(自身を除く): 220674128

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 491, 982, 1964, 1979, 3928, 3958, 6383, 7856, 7916, 12766, 15832, 25532, 25727, 31664, 51064, 51454, 102128, 102908, 205816, 411632, 971689, 1943378, 3886756, 7773512, 12631957, 15547024, 25263914, 50527828, 101055656, 202111312]

約数ペア:

[(1, 202111312), (2, 101055656), (4, 50527828), (8, 25263914), (13, 15547024), (16, 12631957), (26, 7773512), (52, 3886756), (104, 1943378), (208, 971689), (491, 411632), (982, 205816), (1964, 102908), (1979, 102128), (3928, 51454), (3958, 51064), (6383, 31664), (7856, 25727), (7916, 25532), (12766, 15832)]