28080385

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{331}}^1$

素因数の和:421

約数の個数: 24

約数和(自身を含む): 36429696

約数和(自身を除く): 8349311

約数列:

[1, 5, 19, 47, 95, 235, 331, 361, 893, 1655, 1805, 4465, 6289, 15557, 16967, 31445, 77785, 84835, 119491, 295583, 597455, 1477915, 5616077, 28080385]

約数ペア:

[(1, 28080385), (5, 5616077), (19, 1477915), (47, 597455), (95, 295583), (235, 119491), (331, 84835), (361, 77785), (893, 31445), (1655, 16967), (1805, 15557), (4465, 6289)]